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1.51ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG794609666

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794609666

Diamond specifications and retailer prices

From $934 NZD
As of November 6, 2026
10 retailers carry this diamond
Most expensive: $2,082 NZD at MOH London · As of October 4, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG794609666 or 794609666. Listed at 10 retailers as of November 6, 2026. 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

1.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794609666
Dimensions7.48 × 7.45 × 4.43 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
7.48 mm7.45 mm1.51 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794609666
Side View
Table 59.0%Crown 32.6°Girdle: MediumPavilion 40.6°Culet: NoneDepth 59.4%

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: $2,082 NZD|Low: $337 NZD|High: $2,082 NZD|Avg: $950 NZD|+1.3%
MOH London
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
November 1, 2026
Retailer 18$341 NZD
Retailer 3$397 NZD
Retailer 13$411 NZD
Retailer 6$440 NZD
Retailer 16$440 NZD
Retailer 17$765 NZD
Retailer 10$767 NZD
Retailer 12$772 NZD
Retailer 11$817 NZD
Retailer 2$934 NZD
Retailer 14$1,037 NZD
Retailer 8$1,039 NZD
Retailer 4$1,398 NZD
Retailer 7$1,414 NZD
Retailer 5$1,436 NZD
Retailer 9$1,510 NZD
Retailer 15$1,587 NZD
MOH London$2,082 NZD

22 data points across 18 retailers

10 retailers

Retailer 1
-
$341 NZD
Price last confirmed 30 days ago
Retailer 2
-
$411 NZD
View
Price last confirmed 32 days ago
Retailer 3
-
$440 NZD
View
Price last confirmed 34 days ago
Retailer 4
-
$440 NZD
View
Price last confirmed 30 days ago
A
Retailer 5
-
$934 NZD
View
Retailer 6
-
$1,398 NZD
View
Price last confirmed 31 days ago
Retailer 7
-
$1,414 NZD
View
Price last confirmed 31 days ago
Retailer 8
-
$1,436 NZD
View
Price last confirmed 30 days ago
Retailer 9
-
$1,587 NZD
View
Price last confirmed 30 days ago
Most Expensive
MOH London
LG794609666 · Oct 4
$2,082 NZD
£909 GBP
View
Price last confirmed 33 days ago
9 more retailers have this diamond
Prices start from $934 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
1.51ct Round
$934 NZD