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Heart|Lab Grown|IGI

1.59ct F SI1 Heart Lab Grown Diamond

ID • F/SI1 • IGI LG825687255

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825687255

Diamond specifications and retailer prices

From $235 USD
As of November 6, 2026
Save $895 USD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,130 USD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.59ct lab-grown heart diamond

This 1.59ct lab-grown heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG825687255 or 825687255. Listed at 14 retailers as of November 6, 2026, with prices from $235 to $1,130, a $895 spread on the same certified stone. Brilliant Earth lists it at $1,130. 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
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825687255
Dimensions8.27 × 6.94 × 4.89 mm
L/W Ratio1.19
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.27 mm6.94 mm1.59 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825687255
Side View
Table 67.0%Crown 30.6°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 59.1%

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: Nov 6
Current: $1,130 USD|Low: $204 USD|High: $1,760 USD|Avg: $602 USD|-35.8%
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
November 6, 2026
Retailer 13$213 USD
Retailer 7$235 USD
Retailer 12$247 USD
Retailer 5$264 USD
Retailer 2$332 USD
Retailer 8$448 USD
Retailer 6$477 USD
Retailer 4$522 USD
Retailer 9$686 USD
Retailer 3$848 USD
Retailer 10$848 USD
Retailer 11$1,059 USD
Brilliant Earth$1,130 USD

41 data points across 13 retailers

14 retailers$235 USD to $1,130 USD

Retailer 1
-
$213 USD
Price last confirmed 15 days ago
A
Retailer 2
-
$235 USD
View
Final sale: no returns
Retailer 3
-
$247 USD
View
Price last confirmed 14 days ago
Retailer 4
-
$264 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$294 USD
View
A
Retailer 6
-
$332 USD
View
B+
Retailer 7
-
$448 USD
View
A
Retailer 8
-
$477 USD
View
B+
Retailer 9
-
$522 USD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$686 USD
View
Retailer 11
-
$848 USD
View
Price last confirmed 13 days ago
B
Retailer 12
-
$848 USD
View
Retailer 13
-
$1,059 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
20868368A · Nov 6
$1,130 USD
View
13 more retailers have this diamond
Prices start from $235 USDSave up to $895 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 Heart
$235 USD