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Round|Lab Grown|IGI

1.59ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG770644841

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770644841

Diamond specifications and retailer prices

From $373 NZD
$210 USD
As of November 1, 2026
Save $1,484 NZD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,858 NZD at MOH London · As of November 2, 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 LG770644841 or 770644841. Listed at 17 retailers as of November 1, 2026, with prices from $373 to $1,858, a $1,484 spread on the same certified stone. MOH London lists it at $1,858. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770644841
Dimensions7.56 × 7.61 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.56 mm7.61 mm1.59 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770644841
Side View
Table 59.0%Crown 33.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 59.8%

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 1
Current: $1,858 NZD|Low: $373 NZD|High: $2,168 NZD|Avg: $1,109 NZD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 7$373 NZD
Retailer 8$464 NZD
Retailer 4$773 NZD
Retailer 9$796 NZD
Retailer 2$855 NZD
Retailer 10$922 NZD
Retailer 3$1,219 NZD
Retailer 6$1,404 NZD
Retailer 5$1,742 NZD
MOH London$1,858 NZD

42 data points across 10 retailers

17 retailers$373 NZD to $1,858 NZD

A
Cheapest Retailer
-
$373 NZD
$210 USD
A
Retailer 2
-
$434 NZD
$244 USD
View
Retailer 3
-
$464 NZD
$261 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$464 NZD
$261 USD
View
A
Retailer 5
-
$773 NZD
€414 EUR
View
B+
Retailer 6
-
$796 NZD
$448 USD
View
A
Retailer 7
-
$830 NZD
$467 USD
View
A
Retailer 8
-
$855 NZD
£379 GBP
View
A
Retailer 9
-
$922 NZD
$519 USD
View
B+
Retailer 10
-
$1,219 NZD
$686 USD
View
Retailer 11
-
$1,360 NZD
$765 USD
View
Price last confirmed 48 days ago
Retailer 12
-
$1,395 NZD
$785 USD
View
Price last confirmed 26 days ago
Retailer 13
-
$1,404 NZD
$790 USD
View
Price last confirmed 16 days ago
B+
Retailer 14
-
$1,491 NZD
$839 USD
View
B
Retailer 15
-
$1,585 NZD
$892 USD
View
B
Retailer 16
-
$1,742 NZD
$980 USD
View
Most Expensive
B
MOH London
LG770644841 · Nov 2
$1,858 NZD
£823 GBP
View
16 more retailers have this diamond
Prices start from $373 NZDSave up to $1,484 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
$373 NZD