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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 $532 NZD
As of November 6, 2026
Save $2,168 NZD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,700 NZD 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 $532 to $2,700, a $2,168 spread on the same certified stone. Reve Diamonds lists it at $2,700. 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: $2,635 NZD|Low: $511 NZD|High: $3,720 NZD|Avg: $1,560 NZD|-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$532 NZD
Retailer 5$595 NZD
Retailer 15$617 NZD
Retailer 2$660 NZD
Retailer 12$660 NZD
Retailer 3$862 NZD
Retailer 9$938 NZD
Retailer 14$1,081 NZD
Retailer 4$1,113 NZD
Retailer 8$1,569 NZD
Retailer 10$2,028 NZD
Retailer 13$2,121 NZD
Retailer 6$2,208 NZD
Retailer 1$2,635 NZD
Reve Diamonds$2,700 NZD
Retailer 7$3,720 NZD

26 data points across 16 retailers

16 retailers$532 NZD to $2,700 NZD

A
Cheapest Retailer
-
$532 NZD
B+
Retailer 2
-
$595 NZD
View
Final sale: no returns
B+
Retailer 3
-
$617 NZD
View
B+
Retailer 4
-
$660 NZD
View
Retailer 5
-
$660 NZD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$862 NZD
View
B+
Retailer 7
-
$938 NZD
View
B+
Retailer 8
-
$1,081 NZD
View
B+
Retailer 9
-
$1,113 NZD
View
B+
Retailer 10
-
$1,131 NZD
View
B+
Retailer 11
-
$1,569 NZD
View
B+
Retailer 12
-
$2,028 NZD
View
B+
Retailer 13
-
$2,121 NZD
View
B+
Retailer 14
-
$2,208 NZD
View
B+
Retailer 15
-
$2,635 NZD
View
Most Expensive
B
Reve Diamonds
CAC247731 · Nov 6
$2,700 NZD
$1,497 USD
View
15 more retailers have this diamond
Prices start from $532 NZDSave up to $2,168 NZD

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
$532 NZD