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Round|Lab Grown|IGI

2.56ct J VS1 Round Lab Grown Diamond

EX • J/VS1 • IGI LG450050158

Shape and cutting style on the report: Round brilliant

Certificate IGI LG450050158

Diamond specifications and retailer prices

From $340 USD
As of October 29, 2026
Save $2,680 USD (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,020 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 2.56ct lab-grown round diamond

This 2.56ct lab-grown round sits in the two to three carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG450050158 or 450050158. Listed at 15 retailers as of October 29, 2026, with prices from $340 to $3,020, a $2,680 spread on the same certified stone. Do Amore Diamonds lists it at $3,020. 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

2.56
Carat
J
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG450050158
Dimensions8.75 × 8.80 × 5.30 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
8.75 mm8.80 mm2.56 ctJ / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG450050158
Side View
Table 61.0%Crown 34.1°Girdle: Slightly ThickPavilion 40.5°Culet: NoneDepth 60.3%

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 29
Current: $3,020 USD|Low: $327 USD|High: $21,504 USD|Avg: $2,284 USD
Do Amore Diamonds
Retailer 2
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Retailer 18
October 31, 2026
Retailer 17$340 USD
Retailer 11$371 USD
Retailer 3$381 USD
Retailer 4$422 USD
Retailer 18$422 USD
Retailer 12$528 USD
Retailer 15$575 USD
Retailer 8$852 USD
Retailer 6$862 USD
Retailer 5$1,014 USD
Retailer 14$1,124 USD
Retailer 16$1,238 USD
Retailer 2$1,406 USD
Retailer 7$1,654 USD
Retailer 13$1,830 USD
Do Amore Diamonds$3,020 USD
Retailer 10$3,067 USD
Retailer 9$21,504 USD

29 data points across 18 retailers

15 retailers$340 USD to $3,020 USD

A
Cheapest Retailer
-
$340 USD
A
Retailer 2
-
$371 USD
View
A
Retailer 3
-
$381 USD
View
Final sale: no returns
A
Retailer 4
-
$422 USD
View
A
Retailer 5
-
$422 USD
View
B+
Retailer 6
-
$528 USD
View
A
Retailer 7
-
$575 USD
View
A
Retailer 8
-
$862 USD
View
A
Retailer 9
-
$1,014 USD
View
A
Retailer 10
-
$1,124 USD
ZAR 18,156 ZAR
View
A
Retailer 11
-
$1,238 USD
View
A
Retailer 12
-
$1,406 USD
View
A
Retailer 13
-
$1,654 USD
View
A
Retailer 14
-
$1,830 USD
£1,441 GBP
View
Most Expensive
B+
Do Amore Diamonds
27-BE5799129 · Oct 29
$3,020 USD
View
14 more retailers have this diamond
Prices start from $340 USDSave up to $2,680 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
2.56ct Round
$340 USD