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Round|Lab Grown|IGI

1.59ct H SI1 Round Lab Grown Diamond

GD • H/SI1 • IGI LG720547065

Shape and cutting style on the report: Round brilliant

Certificate IGI LG720547065

Diamond specifications and retailer prices

From $412 NZD
$232 USD
As of November 1, 2026
Save $1,948 NZD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,360 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 standard cut grade and certified by IGI LG720547065 or 720547065. Listed at 14 retailers as of October 31, 2026, with prices from $412 to $2,360, a $1,948 spread on the same certified stone. Brilliant Earth lists it at $2,360. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.59
Carat
H
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720547065
Dimensions7.54 × 7.52 × 4.40 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.54 mm7.52 mm1.59 ctH / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720547065
Side View
Table 59.0%Crown 34.7°Girdle: MediumPavilion 40.7°Culet: LargeDepth 58.5%

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: $2,360 NZD|Low: $396 NZD|High: $2,449 NZD|Avg: $1,085 NZD|-3.6%
Brilliant Earth
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 1, 2026
Retailer 11$412 NZD
Retailer 13$477 NZD
Retailer 5$511 NZD
Retailer 12$511 NZD
Retailer 8$851 NZD
Retailer 3$866 NZD
Retailer 7$905 NZD
Retailer 15$963 NZD
Retailer 6$983 NZD
Retailer 14$1,111 NZD
Retailer 9$1,215 NZD
Retailer 10$1,336 NZD
Retailer 4$1,641 NZD
Retailer 2$2,046 NZD
Brilliant Earth$2,360 NZD

24 data points across 15 retailers

14 retailers$412 NZD to $2,360 NZD

A
Cheapest Retailer
-
$412 NZD
$232 USD
A
Retailer 2
-
$477 NZD
$269 USD
View
A
Retailer 3
-
$511 NZD
$288 USD
View
Retailer 4
-
$511 NZD
$288 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$851 NZD
€457 EUR
View
B+
Retailer 6
-
$866 NZD
$488 USD
View
B+
Retailer 7
-
$963 NZD
$543 USD
View
B+
Retailer 8
-
$1,111 NZD
$626 USD
View
B+
Retailer 9
-
$1,215 NZD
$685 USD
View
B+
Retailer 10
-
$1,336 NZD
$753 USD
View
Retailer 11
-
$1,574 NZD
$887 USD
View
Price last confirmed 46 days ago
B+
Retailer 12
-
$1,641 NZD
$925 USD
View
B+
Retailer 13
-
$2,046 NZD
£908 GBP
View
Most Expensive
B+
Brilliant Earth
17383081A · Oct 31
$2,360 NZD
$1,330 USD
View
13 more retailers have this diamond
Prices start from $412 NZDSave up to $1,948 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
$412 NZD