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1.51ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG794609571

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794609571

Diamond specifications and retailer prices

From $348 NZD
As of November 5, 2026
Save $1,668 NZD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,016 NZD at MOH London · As of November 5, 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 LG794609571 or 794609571. Listed at 17 retailers as of November 5, 2026, with prices from $348 to $2,016, a $1,668 spread on the same certified stone. MOH London lists it at $2,016. 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 angle34°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794609571
Dimensions7.49 × 7.46 × 4.39 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
7.49 mm7.46 mm1.51 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794609571
Side View
Table 63.0%Crown 34°Girdle: MediumPavilion 40.6°Culet: NoneDepth 58.8%

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 5
Current: $2,016 NZD|Low: $348 NZD|High: $2,069 NZD|Avg: $939 NZD|-2.5%
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
November 6, 2026
Retailer 7$348 NZD
Retailer 3$390 NZD
Retailer 16$404 NZD
Retailer 12$433 NZD
Retailer 8$435 NZD
Retailer 4$756 NZD
Retailer 14$765 NZD
Retailer 10$777 NZD
Retailer 2$788 NZD
Retailer 15$1,032 NZD
Retailer 9$1,147 NZD
Retailer 11$1,281 NZD
Retailer 13$1,391 NZD
Retailer 5$1,405 NZD
Retailer 6$1,486 NZD
MOH London$2,016 NZD

30 data points across 16 retailers

17 retailers$348 NZD to $2,016 NZD

A
Cheapest Retailer
-
$348 NZD
A
Retailer 2
-
$390 NZD
View
Final sale: no returns
A
Retailer 3
-
$404 NZD
View
A
Retailer 4
-
$433 NZD
View
Retailer 5
-
$435 NZD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$756 NZD
View
A
Retailer 7
-
$765 NZD
View
A
Retailer 8
-
$777 NZD
View
A
Retailer 9
-
$788 NZD
View
B+
Retailer 10
-
$1,032 NZD
View
B+
Retailer 11
-
$1,147 NZD
View
B+
Retailer 12
-
$1,281 NZD
View
B
Retailer 13
-
$1,391 NZD
View
B
Retailer 14
-
$1,405 NZD
View
B+
Retailer 15
-
$1,486 NZD
View
B
Retailer 16
-
$1,587 NZD
View
Most Expensive
B
MOH London
LG794609571 · Nov 5
$2,016 NZD
£880 GBP
View
16 more retailers have this diamond
Prices start from $348 NZDSave up to $1,668 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
$348 NZD