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Cushion|Lab Grown|IGI

3.51ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG593390996

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG593390996

Diamond specifications and retailer prices

From $742 USD
As of October 31, 2026
Save $5,148 USD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,890 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 LG593390996 or 593390996. Listed at 16 retailers as of October 31, 2026, with prices from $742 to $5,890, a $5,148 spread on the same certified stone. Do Amore Diamonds lists it at $5,890. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG593390996
Dimensions8.86 × 8.70 × 5.79 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.86 mm8.70 mm3.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG593390996
Side View
Table 64.0%Crown 37.1°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 66.6%

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: Oct 31
Current: $3,336 USD|Low: $770 USD|High: $5,560 USD|Avg: $1,907 USD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 8$770 USD
Retailer 7$950 USD
Retailer 2$1,011 USD
Retailer 9$1,168 USD
Retailer 3$1,364 USD
Retailer 5$1,919 USD
Retailer 6$1,973 USD
Retailer 1$3,336 USD
Retailer 4$5,560 USD

41 data points across 9 retailers

16 retailers$742 USD to $5,890 USD

A
Cheapest Retailer
-
$742 USD
Final sale: no returns
Retailer 2
-
$770 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$950 USD
View
A
Retailer 4
-
$980 USD
View
A
Retailer 5
-
$1,011 USD
£796 GBP
View
A
Retailer 6
-
$1,088 USD
View
A
Retailer 7
-
$1,168 USD
View
A
Retailer 8
-
$1,364 USD
£1,074 GBP
View
B+
Retailer 9
-
$1,919 USD
A$2,952 AUD
View
B+
Retailer 10
-
$1,973 USD
ZAR 31,872 ZAR
View
B+
Retailer 11
-
$2,637 USD
£2,076 GBP
View
B+
Retailer 12
-
$2,652 USD
View
B
Retailer 13
-
$3,041 USD
View
B
Retailer 14
-
$3,336 USD
£2,627 GBP
View
B
Retailer 15
-
$5,560 USD
View
Most Expensive
B
Do Amore Diamonds
27-0409C601B · Oct 31
$5,890 USD
View
15 more retailers have this diamond
Prices start from $742 USDSave up to $5,148 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
$742 USD