CaratHunter
Plans
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 $330 AUD
$232 USD
As of October 29, 2026
Save $1,563 AUD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,893 AUD 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 29, 2026, with prices from $330 to $1,893, a $1,563 spread on the same certified stone. Brilliant Earth lists it at $1,893. 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: Oct 29
Current: $1,893 AUD|Low: $317 AUD|High: $1,965 AUD|Avg: $871 AUD|-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
October 31, 2026
Retailer 11$330 AUD
Retailer 13$383 AUD
Retailer 5$410 AUD
Retailer 12$410 AUD
Retailer 2$683 AUD
Retailer 3$695 AUD
Retailer 7$726 AUD
Retailer 15$773 AUD
Retailer 6$789 AUD
Retailer 14$891 AUD
Retailer 9$975 AUD
Retailer 10$1,072 AUD
Retailer 4$1,317 AUD
Retailer 8$1,651 AUD
Brilliant Earth$1,893 AUD

23 data points across 15 retailers

14 retailers$330 AUD to $1,893 AUD

A
Cheapest Retailer
-
$330 AUD
$232 USD
A
Retailer 2
-
$383 AUD
$269 USD
View
A
Retailer 3
-
$410 AUD
$288 USD
View
B+
Retailer 4
-
$410 AUD
$288 USD
View
B+
Retailer 5
-
$683 AUD
€457 EUR
View
B+
Retailer 6
-
$695 AUD
$488 USD
View
B+
Retailer 7
-
$773 AUD
$543 USD
View
B+
Retailer 8
-
$891 AUD
$626 USD
View
B+
Retailer 9
-
$975 AUD
$685 USD
View
B+
Retailer 10
-
$1,072 AUD
$753 USD
View
Retailer 11
-
$1,263 AUD
$887 USD
View
Price last confirmed 46 days ago
B+
Retailer 12
-
$1,317 AUD
$925 USD
View
B+
Retailer 13
-
$1,651 AUD
£913 GBP
View
Most Expensive
B+
Brilliant Earth
17383081A · Oct 31
$1,893 AUD
$1,330 USD
View
13 more retailers have this diamond
Prices start from $330 AUDSave up to $1,563 AUD

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
$330 AUD