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Cushion|Lab Grown|IGI

3.51ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG515202982

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG515202982

Diamond specifications and retailer prices

From $566 USD
As of October 31, 2026
Save $3,924 USD (87%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,490 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.51ct lab-grown cushion diamond

This 3.51ct 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 LG515202982 or 515202982. Listed at 20 retailers as of October 31, 2026, with prices from $566 to $4,490, a $3,924 spread on the same certified stone. Do Amore Diamonds lists it at $4,490. 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

3.51
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515202982
Dimensions8.91 × 8.55 × 5.87 mm
L/W Ratio1.04
Girdle conditionFaceted
Top View
8.91 mm8.55 mm3.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG515202982
Side View
Table 61.5%Crown 37.1°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 68.7%

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: $4,490 USD|Low: $566 USD|High: $5,980 USD|Avg: $1,976 USD|-24.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 1, 2026
Retailer 6$566 USD
Retailer 19$725 USD
Retailer 13$770 USD
Retailer 10$781 USD
Retailer 3$830 USD
Retailer 4$947 USD
Retailer 20$1,003 USD
Retailer 14$1,070 USD
Retailer 16$1,461 USD
Retailer 18$1,502 USD
Retailer 17$2,012 USD
Retailer 15$2,298 USD
Retailer 7$2,323 USD
Retailer 12$2,356 USD
Retailer 5$2,360 USD
Retailer 11$2,627 USD
Retailer 2$3,004 USD
Retailer 9$3,283 USD
Retailer 8$3,513 USD
Do Amore Diamonds$4,490 USD

26 data points across 20 retailers

20 retailers$566 USD to $4,490 USD

A
Cheapest Retailer
-
$566 USD
Final sale: no returns
A
Retailer 2
-
$725 USD
View
A
Retailer 3
-
$770 USD
£606 GBP
View
Retailer 4
-
$781 USD
View
Price last confirmed 16 days ago
B+
Retailer 5
-
$830 USD
View
A
Retailer 6
-
$947 USD
View
A
Retailer 7
-
$1,003 USD
View
A
Retailer 8
-
$1,070 USD
£843 GBP
View
A
Retailer 9
-
$1,461 USD
A$2,247 AUD
View
A
Retailer 10
-
$1,502 USD
ZAR 24,269 ZAR
View
B+
Retailer 11
-
$2,012 USD
£1,584 GBP
View
B+
Retailer 12
-
$2,120 USD
View
B+
Retailer 13
-
$2,298 USD
View
B+
Retailer 14
-
$2,323 USD
View
B+
Retailer 15
-
$2,360 USD
View
B+
Retailer 16
-
$2,627 USD
CA$3,648 CAD
View
B
Retailer 17
-
$3,004 USD
£2,365 GBP
View
B
Retailer 18
-
$3,283 USD
View
B
Retailer 19
-
$3,513 USD
SGD 4,747 SGD
View
Most Expensive
B
Do Amore Diamonds
27-2174B51AD · Oct 31
$4,490 USD
View
19 more retailers have this diamond
Prices start from $566 USDSave up to $3,924 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
3.51ct Cushion
$566 USD