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Cushion|Lab Grown|IGI

3.09ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG528235321

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG528235321

Diamond specifications and retailer prices

From $641 USD
As of October 31, 2026
Save $2,464 USD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,105 USD at MOH London · As of October 29, 2026
View at MOH London

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG528235321 or 528235321. Listed at 14 retailers as of October 29, 2026, with prices from $641 to $3,105, a $2,464 spread on the same certified stone. MOH London lists it at $3,105. 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

3.09
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.2°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG528235321
Dimensions8.65 × 8.34 × 5.65 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Top View
8.65 mm8.34 mm3.09 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG528235321
Side View
Table 63.5%Crown 33.2°Girdle: THK-VTKPavilion 42.3°Culet: NoneDepth 67.7%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $3,105 USD|Low: $606 USD|High: $3,125 USD|Avg: $1,593 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 3$641 USD
Retailer 10$711 USD
Retailer 7$820 USD
Retailer 13$988 USD
Retailer 9$1,095 USD
Retailer 2$1,102 USD
Retailer 11$1,128 USD
Retailer 6$1,545 USD
Retailer 12$2,073 USD
Retailer 5$2,305 USD
Retailer 4$2,386 USD
Retailer 8$2,760 USD
MOH London$3,105 USD

42 data points across 13 retailers

14 retailers$641 USD to $3,105 USD

A
Cheapest Retailer
-
$641 USD
Final sale: no returns
Retailer 2
-
$711 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$820 USD
View
A
Retailer 4
-
$988 USD
View
A
Retailer 5
-
$1,095 USD
View
A
Retailer 6
-
$1,102 USD
£868 GBP
View
A
Retailer 7
-
$1,128 USD
View
A
Retailer 8
-
$1,545 USD
ZAR 24,961 ZAR
View
B
Retailer 9
-
$2,073 USD
£1,632 GBP
View
B+
Retailer 10
-
$2,305 USD
View
B
Retailer 11
-
$2,342 USD
HK$18,300 HKD
View
B
Retailer 12
-
$2,386 USD
View
B
Retailer 13
-
$2,760 USD
View
Most Expensive
B
MOH London
LG528235321 · Oct 29
$3,105 USD
£2,445 GBP
View
13 more retailers have this diamond
Prices start from $641 USDSave up to $2,464 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
3.09ct Cushion
$641 USD