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1.59ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG425065844

Shape and cutting style on the report: Round brilliant

Certificate IGI LG425065844

Diamond specifications and retailer prices

From $1,561 NZD
$880 USD
As of October 30, 2026
Save $7,044 NZD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,606 NZD at MOH London · As of October 27, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG425065844 or 425065844. Listed at 10 retailers as of October 27, 2026, with prices from $1,561 to $8,606, a $7,044 spread on the same certified stone. MOH London lists it at $8,606. 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
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425065844
Dimensions7.51 × 7.49 × 4.63 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.51 mm7.49 mm1.59 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG425065844
Side View
Table 55.5%Crown 35.5°Girdle: MediumPavilion 40.5°Culet: NoneDepth 61.8%

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: Oct 30
Current: $8,606 NZD|Low: $1,561 NZD|High: $8,698 NZD|Avg: $3,905 NZD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2$1,561 NZD
Retailer 5$2,307 NZD
Retailer 8$2,509 NZD
Retailer 10$2,582 NZD
Retailer 6$2,676 NZD
Retailer 3$3,096 NZD
Retailer 12$3,692 NZD
Retailer 7$4,233 NZD
Retailer 11$4,986 NZD
Retailer 9$5,014 NZD
Retailer 4$5,988 NZD
MOH London$8,606 NZD

14 data points across 12 retailers

10 retailers$1,561 NZD to $8,606 NZD

A
Cheapest Retailer
-
$1,561 NZD
$880 USD
A
Retailer 2
-
$2,307 NZD
$1,300 USD
View
B+
Retailer 3
-
$2,509 NZD
$1,414 USD
View
B+
Retailer 4
-
$2,582 NZD
$1,455 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,676 NZD
$1,508 USD
View
Retailer 6
-
$2,676 NZD
$1,508 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
$4,233 NZD
$2,386 USD
View
B
Retailer 8
-
$4,986 NZD
$2,810 USD
View
B
Retailer 9
-
$5,014 NZD
$2,826 USD
View
Most Expensive
B
MOH London
LG425065844 · Oct 27
$8,606 NZD
£3,819 GBP
View
9 more retailers have this diamond
Prices start from $1,561 NZDSave up to $7,044 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
$1,561 NZD