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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 $232 USD
As of October 29, 2026
Save $1,098 USD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,330 USD at Brilliant Earth · As of October 29, 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 $232 to $1,330, a $1,098 spread on the same certified stone. Brilliant Earth lists it at $1,330. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,330 USD|Low: $223 USD|High: $1,380 USD|Avg: $612 USD|-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 29, 2026
Retailer 11$232 USD
Retailer 13$269 USD
Retailer 5$288 USD
Retailer 12$288 USD
Retailer 2$481 USD
Retailer 3$488 USD
Retailer 7$510 USD
Retailer 15$543 USD
Retailer 6$554 USD
Retailer 14$626 USD
Retailer 9$685 USD
Retailer 10$753 USD
Retailer 4$925 USD
Retailer 8$1,160 USD
Brilliant Earth$1,330 USD

22 data points across 15 retailers

14 retailers$232 USD to $1,330 USD

A
Cheapest Retailer
-
$232 USD
A
Retailer 2
-
$269 USD
View
A
Retailer 3
-
$288 USD
View
B+
Retailer 4
-
$288 USD
View
B+
Retailer 5
-
$481 USD
€458 EUR
View
B+
Retailer 6
-
$488 USD
View
B+
Retailer 7
-
$543 USD
View
B+
Retailer 8
-
$626 USD
View
B+
Retailer 9
-
$685 USD
View
B+
Retailer 10
-
$753 USD
View
Retailer 11
-
$887 USD
View
Price last confirmed 45 days ago
B+
Retailer 12
-
$925 USD
View
B+
Retailer 13
-
$1,160 USD
£913 GBP
View
Most Expensive
B+
Brilliant Earth
17383081A · Oct 29
$1,330 USD
View
13 more retailers have this diamond
Prices start from $232 USDSave up to $1,098 USD

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
$232 USD