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Trilogy (Trilliant Side Stones) Lab Diamond Engagement Ring in 18K Gold - Asscher

Rated 5 stars by 100+ customers
Dhs. 5,000.00 AED
Shipping calculated at checkout.
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View With Diamond Shape
  • Asscher
Size
  • 1 CT
  • 1.5 CT
  • 2 CT
  • 2.5 CT
  • 3 CT
  • 3.5 CT
  • 4 CT
  • 4.5 CT
  • 5 CT
Metal Type
  • Rose Gold 18K
  • Yellow Gold 18K
  • White Gold 18K
Certificate
Color
Clarity
Cut
IGI
D - F
VS1
Excellent
*The certificate for your diamond will be shared after the order is placed
  • Complimentary shipping

  • Manufacturing warranty

  • IGI & GIA certification

  • Complimentary ring resizing

  • Complimentary engraving

  • Complimentary customization

Shipping details

Complimentary Shipping

The Diamond Oasis offers complimentary worldwide shipping on all orders, including across the Middle East.

Estimated Delivery Times
  • Ready-to-Ship Jewellery: Delivered within 3–5 business days.
  • Bespoke & Made-to-Order: Each piece is meticulously crafted in Dubai, with an estimated crafting and delivery time of 7–14 business days.

Diamond certification

At The Diamond Oasis, we work exclusively with high-quality, certified lab-grown and natural diamonds, as well as carefully selected gemstones.

Diamond Certification
  • Engagement Rings: Every engagement ring featuring a centre diamond of 0.5 carats or above comes with an individual IGI or GIA certificate.
  • Fine Jewellery: Other pieces, including bracelets, wedding bands, necklaces and earrings, may be certified as a complete jewellery piece rather than individually for each diamond. Certification may be provided by IGI, SGL, IDL, IDT or HRD.

Our Lab Grown Diamond Standards

Lab-grown diamonds are chemically, physically and optically identical to natural mined diamonds. They are real diamonds, offering the same brilliance, beauty and durability.

We select only IGI or GIA-certified lab-grown diamonds that meet our strict quality standards:
  • Colour: D–F (Colourless)
  • Clarity: VS1–VVS1 or higher for white diamonds; VS2+ for fancy colored
  • Cut: Excellent (where applicable)
  • Polish & Symmetry: Excellent

Our Natural Diamond Standards

For natural diamonds, we recommend the following specifications to achieve an excellent balance of beauty, quality and value:
  • Colour: G (Near Colourless)
  • Clarity: VS2 or higher
  • Cut: Very Good to Excellent (where applicable)
  • Certification: GIA
We also offer flexibility in sourcing natural diamonds of different grades to accommodate individual preferences and budgets. 

Design & craftsmanship

Once your order is placed, you will receive a Computer-Aided Design (CAD) of your jewellery and a certificates of diamonds (where applicable) within approximately 2–3 business days for your review and approval.

Our artisans will begin crafting your piece only once you are completely satisfied with the design.

We’ll keep you updated throughout the process, from design approval to final delivery.

Every piece of The Diamond Oasis jewellery is crafted from solid 18 Karat gold — never hollow or plated.

Our jewellery is crafted in Dubai or Beirut by experienced artisans, with each piece undergoing five stages of quality inspection before it reaches you.

Sizing & resizing details

Enjoy peace of mind with one complimentary ring resize within the first 60 days of purchase, including shipping both ways.

Find our ring sizing methods below, or contact our team for personal assistance.

Exception: Full eternity rings are not eligible for resizing.

Method 1: On-Hands

Method 2: Existing Ring

Size Chart
Ring_sizer_1
  • Use a measuring tool such as a tape measure, string, or strip of paper.
  • Wrap the measuring tool around the finger where you intend to wear the ring.
  • If stacking rings, consider the placement on your finger and mark where the ends meet.
  • Lay the string or paper strip flat on a surface.
  • If measured with other tools than measuring tape, use a ruler to measure the length up to the marked spot.
  • Refer to the provided chart to find the closest The Diamond Oasis ring size based on your measurement.


Ring_sizer_2
  • Select a ring that fits your finger comfortably.
  • Measure the interior diameter of the ring in millimeters (mm).
  • Refer to the measurement chart provided to find the closest The Diamond Oasis ring size in mm based on your measurement


Final_table_Ring_size
Product description

Trilogy Asscher Lab Diamond Engagement Ring with Trilliant Side Stones

This engagement ring showcases a striking Asscher-cut lab diamond at its center, complemented by dazzling trilliant side stones that enhance its brilliance. Crafted in 18K gold, the design blends vintage-inspired elegance with a modern twist, resulting in a piece that radiates sophistication and timeless charm. Perfect for those seeking a unique yet classic statement, this ring highlights the exceptional sparkle and clarity of lab-grown diamonds.

  • Carat options starting from 1ct provide flexibility to select the perfect diamond size for your personal style and budget.
  • Lab-grown diamonds are chosen for their excellent cut quality, VS1 or better clarity, and colorless grading (D-E-F), ensuring remarkable fire and brilliance.
  • IGI certification guarantees authenticity and high standards for each diamond gemstone included in the ring.
  • Available in white, yellow, and rose 18K gold, allowing customization to suit individual preferences and skin tones.
  • Diamond shapes include the elegant Asscher cut at the center paired with trilliant side stones for a distinct and sophisticated look.
  • Complimentary express shipping ensures your precious ring arrives promptly.
  • Personalize your ring with complimentary engraving to add a meaningful touch.
  • Each purchase includes a complimentary signature emerald-green gift box that elevates the unboxing experience.
  • A natural diamond option is available for those who prefer traditional gemstones.

This trilogy ring with trilliant side stones offers a refined alternative to conventional engagement rings, combining intricate design with accessible luxury. The flexibility in carat sizes and the inclusion of lab-grown diamonds make this ring a sophisticated choice, suitable for a variety of tastes and budgets, while maintaining exceptional craftsmanship and sparkle.

Precision Craftsmanship Meets Enduring Style

Every detail of this ring is carefully engineered, featuring IGI-certified lab-grown diamonds that boast outstanding clarity and fire, paired with durable 18K gold settings that provide lasting elegance. The unique blend of the Asscher cut center and trilliant side stones creates a captivating silhouette designed for comfort and long-lasting wear. This ring exemplifies a harmonious balance of artistry and resilience, ideal for celebrating your engagement.

Signature Gift Packaging

Every ring arrives beautifully presented
in our signature The Diamond Oasis packaging.
Packaging_square

Compare Diamond Sizes

round_diamond_sizes
2_af28f754-ecc4-4178-be83-bd6a56368996
3_05040845-8419-4320-8b08-11af80d0445a
emerald_diamond_sizes
marquise_diamond_sizes
5_cacd600b-a422-4bac-be3f-51b06c7725a4
7_a0e93c7b-8583-4491-a959-f5c7215b094e
radiant_diamond_sizes
8_6684857e-0810-46a7-a88c-f86bce285036
10_e2c7e127-2ba0-415b-8ca7-4b95e8543efe

Book consultation with a jewellery specialist, 
in-person or virtually

Whether you already have a jewellery design in mind or are just starting to explore, book a complimentary, one-on-one consultation in Dubai, Beirut, Saudi Arabia or anywhere in the world.
Diamonds' Grading and Certification
Engagement rings with a centre diamond of 0.5 ct or above include an individual IGI or GIA certificate. Other jewellery, including bracelets, bands, necklaces and earrings, may be certified as a complete jewellery piece rather than per individual diamond, by IGI, SGL, IDL, IDT or HRD institutions.
IGI_1

Carat

  • Carat weight has the most influence on diamond value. The weight or size of a diamond is measured in carats (ct.). 

  • Diamonds of different shapes may appear different sizes for the same carat weight.

  •  One carat weighs 1/5 of a gram and is divided into 100 points.  For example: 0.75 carat = 75 points  1/2 carat = 50 points  1/4 carat = 25 points 

  • When diamonds are mined, large gems are discovered much less frequently than small ones. This rarity makes large diamonds much more valuable. 

  • Diamond prices rise exponentially with carat weight. So, a 2-carat diamond of a given quality is always worth more than two 1-carat diamonds of the same quality.

Color


  • All the white diamonds of The Diamond Oasis jewellery are graded as D-E-F (colorless).

  • Diamonds are graded on a scale from colorless to light yellow or light brown. D-F falls within the colorless range, which is considered the rarest and most expensive.

  • Fancy colored diamonds are those with hues other than yellow or brown, and they are graded separately. 

  • The color of diamonds is determined by comparing them to a master set of stones ranging from D (colorless) to Z (most yellow/brown). 

  • IGI assigns color grades for diamonds in the D-Z range by viewing them through the pavilion in a neutral environment to ensure accuracy.

Clarity


  •  All the diamond of The Diamond Oasis are minimum VS1 clarity - no inclusions can be seen with human eye.

  • Clarity evaluates a diamond's freedom from internal and external characteristics that occurred during formation, polishing, or wear. 

  • Clarity characteristics include inclusions (internal) and blemishes (external). 

  • Grading the clarity involves observing the number, nature, size, and position of these characteristics. 

  • IGI grading reports include diagrams showing clarity characteristics, marked in red for internal and green for external features.
Cut

  • All the diamonds of The Diamond Oasis have either Excellent or Very Good Cut

  • Cut quality significantly affects a diamond's appearance, including its brilliance, dispersion (fire), contrast patterns, and scintillation (sparkle). 

  • Man-made factors such as planning, proportions, cutting precision, and finishing details determine the diamond's visual properties. 

  • Diamond faceting has evolved over time, with different shapes and cutting styles available. 

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