CaratHunter
Plans
Round|Lab Grown|IGI

1.59ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG371992363

Shape and cutting style on the report: Round brilliant

Certificate IGI LG371992363

Diamond specifications and retailer prices

From $889 NZD
$501 USD
As of October 30, 2026
Save $3,707 NZD (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,595 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG371992363 or 371992363. Listed at 9 retailers as of October 30, 2026, with prices from $889 to $4,595, a $3,707 spread on the same certified stone. Do Amore Diamonds lists it at $4,595. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG371992363
Dimensions7.48 × 7.45 × 4.67 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa
Top View
7.48 mm7.45 mm1.59 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG371992363
Side View
Table 58.0%Crown 35°Girdle: MediumPavilion 41.5°Culet: NoneDepth 62.6%

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: $4,595 NZD|Low: $811 NZD|High: $4,595 NZD|Avg: $1,628 NZD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 5$889 NZD
Retailer 3$896 NZD
Retailer 6$1,052 NZD
Retailer 7$1,198 NZD
Retailer 8$1,477 NZD
Retailer 4$1,968 NZD
Retailer 9$2,280 NZD
Retailer 2$2,848 NZD
Do Amore Diamonds$4,595 NZD

16 data points across 9 retailers

9 retailers$889 NZD to $4,595 NZD

A
Cheapest Retailer
-
$889 NZD
$501 USD
A
Retailer 2
-
$896 NZD
$505 USD
View
A
Retailer 3
-
$1,052 NZD
$593 USD
View
Retailer 4
-
$1,198 NZD
$675 USD
View
Price last confirmed 24 days ago
A
Retailer 5
-
$1,477 NZD
$833 USD
View
B+
Retailer 6
-
$1,968 NZD
$1,109 USD
View
A
Retailer 7
-
$2,280 NZD
$1,285 USD
View
B+
Retailer 8
-
$2,848 NZD
£1,264 GBP
View
Most Expensive
B
Do Amore Diamonds
27-5BC832090 · Oct 31
$4,595 NZD
$2,590 USD
View
8 more retailers have this diamond
Prices start from $889 NZDSave up to $3,707 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
$889 NZD