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Cushion|Lab Grown|IGI

2.51ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG522231518

Shape and cutting style on the report: Cushion rose cut

Certificate IGI LG522231518

Diamond specifications and retailer prices

From $2,900 USD
As of October 31, 2026
Save $10,157 USD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $13,057 USD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 2.51ct lab-grown cushion diamond

This 2.51ct lab-grown cushion sits in the two to three carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG522231518 or 522231518. Listed at 10 retailers as of October 31, 2026, with prices from $2,900 to $13,057, a $10,157 spread on the same certified stone. Reve Diamonds lists it at $13,057. 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

2.51
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.4°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522231518
Dimensions9.04 × 7.34 × 5.06 mm
L/W Ratio1.23
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
9.04 mm7.34 mm2.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG522231518
Side View
Table 63.0%Crown 32.4°Girdle: MED-THKPavilion 39.9°Culet: NoneDepth 68.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $12,878 USD|Low: $2,900 USD|High: $17,865 USD|Avg: $8,139 USD|-4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Reve Diamonds
October 29, 2026
Retailer 5$2,900 USD
Retailer 10$4,554 USD
Retailer 8$4,819 USD
Retailer 7$4,992 USD
Retailer 11$5,035 USD
Retailer 2$5,542 USD
Retailer 9$7,026 USD
Retailer 6$7,726 USD
Retailer 4$10,391 USD
Retailer 1$12,878 USD
Reve Diamonds$13,057 USD
Retailer 3$17,865 USD

19 data points across 12 retailers

10 retailers$2,900 USD to $13,057 USD

B+
Cheapest Retailer
-
$2,900 USD
B
Retailer 2
-
$4,554 USD
View
B
Retailer 3
-
$4,819 USD
View
Final sale: no returns
Retailer 4
-
$4,992 USD
View
Price last confirmed 15 days ago
B
Retailer 5
-
$5,035 USD
View
B
Retailer 6
-
$7,026 USD
£5,532 GBP
View
B
Retailer 7
-
$7,726 USD
View
B
Retailer 8
-
$10,391 USD
£8,182 GBP
View
B
Retailer 9
-
$12,878 USD
ZAR 208,045 ZAR
View
Most Expensive
B
Reve Diamonds
5C195E453 · Nov 1
$13,057 USD
View
9 more retailers have this diamond
Prices start from $2,900 USDSave up to $10,157 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.

B+
2.51ct Cushion
$2,900 USD