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1.31ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG761528295

Shape and cutting style on the report: Round brilliant

Certificate IGI LG761528295

Diamond specifications and retailer prices

From $357 NZD
As of November 5, 2026
Save $1,783 NZD (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,141 NZD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.31ct lab-grown round diamond

This 1.31ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG761528295 or 761528295. Listed at 23 retailers as of November 5, 2026, with prices from $357 to $2,141, a $1,783 spread on the same certified stone. Reve Diamonds lists it at $2,141. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761528295
Dimensions6.98 × 6.95 × 4.35 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.98 mm6.95 mm1.31 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761528295
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.4%

Caratlytics Score

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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 5
Current: $777 NZD|Low: $339 NZD|High: $2,141 NZD|Avg: $931 NZD|-0.5%
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
Retailer 16
Retailer 17
Retailer 18
Reve Diamonds
November 6, 2026
Retailer 9$357 NZD
Retailer 4$399 NZD
Retailer 18$413 NZD
Retailer 5$442 NZD
Retailer 6$442 NZD
Retailer 7$768 NZD
Retailer 11$770 NZD
Retailer 1$777 NZD
Retailer 2$783 NZD
Retailer 12$799 NZD
Retailer 3$891 NZD
Retailer 17$970 NZD
Retailer 15$974 NZD
Retailer 13$1,191 NZD
Retailer 16$1,207 NZD
Retailer 10$1,421 NZD
Retailer 8$1,519 NZD
Retailer 14$2,064 NZD
Reve Diamonds$2,141 NZD

38 data points across 19 retailers

23 retailers$357 NZD to $2,141 NZD

Retailer 1
-
$354 NZD
Price last confirmed 47 days ago
A
Retailer 2
-
$357 NZD
View
A
Retailer 3
-
$399 NZD
View
Final sale: no returns
A
Retailer 4
-
$413 NZD
View
Retailer 5
-
$433 NZD
View
Price last confirmed 47 days ago
A
Retailer 6
-
$442 NZD
View
Retailer 7
-
$442 NZD
View
Price last confirmed 13 days ago
A
Retailer 8
-
$768 NZD
View
A
Retailer 9
-
$770 NZD
View
A
Retailer 10
-
$777 NZD
View
A
Retailer 11
-
$783 NZD
View
A
Retailer 12
-
$799 NZD
View
B+
Retailer 13
-
$891 NZD
View
B+
Retailer 14
-
$970 NZD
View
B+
Retailer 15
-
$974 NZD
View
B+
Retailer 16
-
$1,191 NZD
View
B+
Retailer 17
-
$1,191 NZD
View
B+
Retailer 18
-
$1,207 NZD
View
Retailer 19
-
$1,411 NZD
View
Price last confirmed 47 days ago
B+
Retailer 20
-
$1,421 NZD
View
B
Retailer 21
-
$1,519 NZD
View
B
Retailer 22
-
$2,064 NZD
View
Most Expensive
B
Reve Diamonds
EAB8DE9AA · Nov 6
$2,141 NZD
$1,187 USD
View
22 more retailers have this diamond
Prices start from $357 NZDSave up to $1,783 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 Round
$357 NZD