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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 $702 AUD
$493 USD
As of October 31, 2026
Save $4,765 AUD (87%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $5,467 AUD at Brilliant Earth · As of October 30, 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 October 30, 2026, with prices from $702 to $5,467, a $4,765 spread on the same certified stone. Brilliant Earth lists it at $5,467. 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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Price History

Last verified: Oct 31
Current: $5,467 AUD|Low: $702 AUD|High: $5,467 AUD|Avg: $2,346 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3$702 AUD
Retailer 6$1,229 AUD
Retailer 2$1,333 AUD
Retailer 5$1,488 AUD
Retailer 8$2,219 AUD
Retailer 7$2,638 AUD
Retailer 4$4,200 AUD
Brilliant Earth$5,467 AUD

37 data points across 8 retailers

4 retailers$702 AUD to $5,467 AUD

A
Cheapest Retailer
-
$702 AUD
$493 USD
Final sale: no returns
A
Retailer 2
-
$1,333 AUD
£737 GBP
View
Retailer 3
-
$4,200 AUD
$2,950 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
21223408A · Oct 30
$5,467 AUD
$3,840 USD
View
3 more retailers have this diamond
Prices start from $702 AUDSave up to $4,765 AUD

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
$702 AUD