CaratHunter
Plans
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 $378 SGD
As of November 6, 2026
Save $1,540 SGD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,918 SGD 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 $378 to $1,918, a $1,540 spread on the same certified stone. Reve Diamonds lists it at $1,918. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,872 SGD|Low: $363 SGD|High: $2,643 SGD|Avg: $1,108 SGD|-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$378 SGD
Retailer 5$423 SGD
Retailer 15$438 SGD
Retailer 2$469 SGD
Retailer 12$469 SGD
Retailer 3$613 SGD
Retailer 9$666 SGD
Retailer 14$768 SGD
Retailer 4$791 SGD
Retailer 8$1,115 SGD
Retailer 10$1,441 SGD
Retailer 13$1,507 SGD
Retailer 6$1,569 SGD
Retailer 1$1,872 SGD
Reve Diamonds$1,918 SGD
Retailer 7$2,643 SGD

26 data points across 16 retailers

16 retailers$378 SGD to $1,918 SGD

A
Cheapest Retailer
-
$378 SGD
B+
Retailer 2
-
$423 SGD
View
Final sale: no returns
B+
Retailer 3
-
$438 SGD
View
B+
Retailer 4
-
$469 SGD
View
Retailer 5
-
$469 SGD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$613 SGD
View
B+
Retailer 7
-
$666 SGD
View
B+
Retailer 8
-
$768 SGD
View
B+
Retailer 9
-
$791 SGD
View
B+
Retailer 10
-
$804 SGD
View
B+
Retailer 11
-
$1,115 SGD
View
B+
Retailer 12
-
$1,441 SGD
View
B+
Retailer 13
-
$1,507 SGD
View
B+
Retailer 14
-
$1,569 SGD
View
B+
Retailer 15
-
$1,872 SGD
View
Most Expensive
B
Reve Diamonds
CAC247731 · Nov 6
$1,918 SGD
$1,497 USD
View
15 more retailers have this diamond
Prices start from $378 SGDSave up to $1,540 SGD

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
$378 SGD