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Cushion|Lab Grown|IGI

3.90ct G VVS2 Cushion Lab Grown Diamond

EX • G/VVS2 • IGI LG816637682

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816637682

Diamond specifications and retailer prices

From $630 SGD
$493 USD
As of November 1, 2026
Save $4,280 SGD (87%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $4,911 SGD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.9ct lab-grown cushion diamond

This 3.9ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG816637682 or 816637682. Listed at 4 retailers as of November 1, 2026, with prices from $630 to $4,911, a $4,280 spread on the same certified stone. Brilliant Earth lists it at $4,911. 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

3.90
Carat
G
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816637682
Dimensions11.26 × 8.09 × 5.37 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.26 mm8.09 mm3.90 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816637682
Side View
Table 63.0%Crown 34.2°Girdle: MED-STKPavilion 37.5°Culet: NoneDepth 66.4%

Caratlytics Score

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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: Nov 1
Current: $4,911 SGD|Low: $630 SGD|High: $4,911 SGD|Avg: $2,120 SGD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 3$630 SGD
Retailer 6$1,104 SGD
Retailer 2$1,197 SGD
Retailer 5$1,336 SGD
Retailer 8$1,994 SGD
Retailer 7$2,370 SGD
Retailer 4$3,773 SGD
Brilliant Earth$4,911 SGD

37 data points across 8 retailers

4 retailers$630 SGD to $4,911 SGD

A
Cheapest Retailer
-
$630 SGD
$493 USD
Final sale: no returns
A
Retailer 2
-
$1,197 SGD
£737 GBP
View
B+
Retailer 3
-
$3,773 SGD
$2,950 USD
View
Most Expensive
B
Brilliant Earth
21223408A · Nov 2
$4,911 SGD
$3,840 USD
View
3 more retailers have this diamond
Prices start from $630 SGDSave up to $4,280 SGD

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
3.90ct Cushion
$630 SGD