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Round|Lab Grown|IGI

1.59ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG770644841

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770644841

Diamond specifications and retailer prices

From $210 USD
As of November 1, 2026
Save $835 USD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,045 USD at MOH London · As of November 2, 2026
View at MOH London

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770644841 or 770644841. Listed at 17 retailers as of November 1, 2026, with prices from $210 to $1,045, a $835 spread on the same certified stone. MOH London lists it at $1,045. 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 angle33.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770644841
Dimensions7.56 × 7.61 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.56 mm7.61 mm1.59 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770644841
Side View
Table 59.0%Crown 33.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 59.8%

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 1
Current: $1,045 USD|Low: $210 USD|High: $1,220 USD|Avg: $624 USD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 7$210 USD
Retailer 8$261 USD
Retailer 4$435 USD
Retailer 9$448 USD
Retailer 2$481 USD
Retailer 10$519 USD
Retailer 3$686 USD
Retailer 6$790 USD
Retailer 5$980 USD
MOH London$1,045 USD

42 data points across 10 retailers

17 retailers$210 USD to $1,045 USD

A
Cheapest Retailer
-
$210 USD
A
Retailer 2
-
$244 USD
View
Retailer 3
-
$261 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$261 USD
View
A
Retailer 5
-
$435 USD
€414 EUR
View
B+
Retailer 6
-
$448 USD
View
A
Retailer 7
-
$467 USD
View
A
Retailer 8
-
$481 USD
£379 GBP
View
A
Retailer 9
-
$519 USD
View
B+
Retailer 10
-
$686 USD
View
Retailer 11
-
$765 USD
View
Price last confirmed 48 days ago
Retailer 12
-
$785 USD
View
Price last confirmed 26 days ago
Retailer 13
-
$790 USD
View
Price last confirmed 16 days ago
B+
Retailer 14
-
$839 USD
View
B
Retailer 15
-
$892 USD
View
B
Retailer 16
-
$980 USD
View
Most Expensive
B
MOH London
LG770644841 · Nov 2
$1,045 USD
£823 GBP
View
16 more retailers have this diamond
Prices start from $210 USDSave up to $835 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
$210 USD