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Round|Lab Grown|IGI

1.59ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG706511921

Shape and cutting style on the report: Round brilliant

Certificate IGI LG706511921

Diamond specifications and retailer prices

From $387 NZD
$218 USD
As of November 1, 2026
Save $1,536 NZD (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,923 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.59ct lab-grown round diamond

This 1.59ct 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 LG706511921 or 706511921. Listed at 15 retailers as of November 1, 2026, with prices from $387 to $1,923, a $1,536 spread on the same certified stone. MOH London lists it at $1,923. 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

1.59
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG706511921
Dimensions7.50 × 7.53 × 4.57 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.50 mm7.53 mm1.59 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG706511921
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.8%

Caratlytics Score

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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 1
Current: $1,923 NZD|Low: $363 NZD|High: $1,946 NZD|Avg: $990 NZD|+1.1%
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
November 3, 2026
Retailer 11$387 NZD
Retailer 4$448 NZD
Retailer 5$480 NZD
Retailer 12$480 NZD
Retailer 9$795 NZD
Retailer 14$821 NZD
Retailer 3$835 NZD
Retailer 2$881 NZD
Retailer 10$881 NZD
Retailer 13$1,070 NZD
Retailer 8$1,264 NZD
Retailer 7$1,413 NZD
Retailer 15$1,543 NZD
Retailer 6$1,635 NZD
MOH London$1,923 NZD

39 data points across 15 retailers

15 retailers$387 NZD to $1,923 NZD

A
Cheapest Retailer
-
$387 NZD
$218 USD
A
Retailer 2
-
$448 NZD
$252 USD
View
A
Retailer 3
-
$480 NZD
$270 USD
View
Retailer 4
-
$480 NZD
$270 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
$795 NZD
€426 EUR
View
B+
Retailer 6
-
$821 NZD
$462 USD
View
A
Retailer 7
-
$835 NZD
$470 USD
View
B+
Retailer 8
-
$881 NZD
£390 GBP
View
A
Retailer 9
-
$881 NZD
£390 GBP
View
B+
Retailer 10
-
$1,070 NZD
$602 USD
View
B+
Retailer 11
-
$1,264 NZD
$711 USD
View
Retailer 12
-
$1,413 NZD
$795 USD
View
Price last confirmed 15 days ago
B
Retailer 13
-
$1,543 NZD
$868 USD
View
B
Retailer 14
-
$1,635 NZD
$920 USD
View
Most Expensive
B
MOH London
LG706511921 · Nov 1
$1,923 NZD
£852 GBP
View
14 more retailers have this diamond
Prices start from $387 NZDSave up to $1,536 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
1.59ct Round
$387 NZD