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Heart|Lab Grown|IGI

1.31ct H SI1 Heart Lab Grown Diamond

ID • H/SI1 • IGI LG522254244

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG522254244

Diamond specifications and retailer prices

From $295 USD
As of November 6, 2026
Save $1,202 USD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,497 USD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.31ct lab-grown heart diamond

This 1.31ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522254244 or 522254244. Listed at 16 retailers as of November 6, 2026, with prices from $295 to $1,497, a $1,202 spread on the same certified stone. Reve Diamonds lists it at $1,497. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.31
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522254244
Dimensions7.92 × 7.08 × 4.21 mm
L/W Ratio1.12
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
7.92 mm7.08 mm1.31 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522254244
Side View
Table 59.5%Crown 31.5°Girdle: STK-THKPavilion 41°Culet: NoneDepth 53.2%

Caratlytics Score

How it works →
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: Nov 6
Current: $1,461 USD|Low: $283 USD|High: $2,062 USD|Avg: $865 USD|-1.5%
Retailer 1
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
Reve Diamonds
November 5, 2026
Retailer 11$295 USD
Retailer 5$330 USD
Retailer 15$342 USD
Retailer 2$366 USD
Retailer 12$366 USD
Retailer 3$478 USD
Retailer 9$520 USD
Retailer 14$599 USD
Retailer 4$617 USD
Retailer 8$870 USD
Retailer 10$1,124 USD
Retailer 13$1,176 USD
Retailer 6$1,224 USD
Retailer 1$1,461 USD
Reve Diamonds$1,497 USD
Retailer 7$2,062 USD

26 data points across 16 retailers

16 retailers$295 USD to $1,497 USD

A
Cheapest Retailer
-
$295 USD
B+
Retailer 2
-
$330 USD
View
Final sale: no returns
B+
Retailer 3
-
$342 USD
View
B+
Retailer 4
-
$366 USD
View
Retailer 5
-
$366 USD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$478 USD
View
B+
Retailer 7
-
$520 USD
View
B+
Retailer 8
-
$599 USD
View
B+
Retailer 9
-
$617 USD
View
B+
Retailer 10
-
$627 USD
View
B+
Retailer 11
-
$870 USD
View
B+
Retailer 12
-
$1,124 USD
View
B+
Retailer 13
-
$1,176 USD
View
B+
Retailer 14
-
$1,224 USD
View
B+
Retailer 15
-
$1,461 USD
View
Most Expensive
B
Reve Diamonds
CAC247731 · Nov 6
$1,497 USD
View
15 more retailers have this diamond
Prices start from $295 USDSave up to $1,202 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
1.31ct Heart
$295 USD