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Cushion|Lab Grown|IGI

8.18ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG803621603

Shape and cutting style on the report: Cushion mixed cut

Certificate IGI LG803621603

Diamond specifications and retailer prices

From $4,393 USD
As of October 30, 2026
Save $13,003 USD (75%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $17,396 USD at Adiamor · As of October 30, 2026
View at Adiamor

About this 8.18ct lab-grown cushion diamond

This 8.18ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG803621603 or 803621603. Listed at 6 retailers as of October 30, 2026, with prices from $4,393 to $17,396, a $13,003 spread on the same certified stone. Adiamor lists it at $17,396. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

8.18
Carat
D
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803621603
Dimensions14.12 × 9.48 × 5.99 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.12 mm9.48 mm8.18 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803621603
Side View
Table 60.0%Crown 42.7°Girdle: MED-STKPavilion 40°Culet: LargeDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $17,396 USD|Low: $4,227 USD|High: $17,396 USD|Avg: $9,850 USD
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 5$4,393 USD
Retailer 2$5,597 USD
Retailer 4$6,635 USD
Retailer 3$9,218 USD
Retailer 6$15,113 USD
Adiamor$17,396 USD

39 data points across 6 retailers

6 retailers$4,393 USD to $17,396 USD

A
Cheapest Retailer
-
$4,393 USD
B+
Retailer 2
-
$5,597 USD
£4,407 GBP
View
B+
Retailer 3
-
$6,635 USD
View
B+
Retailer 4
-
$9,218 USD
£7,258 GBP
View
B
Retailer 5
-
$15,113 USD
View
Most Expensive
B
Adiamor
D-81070389 · Oct 30
$17,396 USD
View
5 more retailers have this diamond
Prices start from $4,393 USDSave up to $13,003 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
8.18ct Cushion
$4,393 USD