CaratHunter
Plans
Round|Lab Grown|IGI

1.59ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG436045603

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436045603

Diamond specifications and retailer prices

From $880 USD
As of October 30, 2026
Save $3,990 USD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,870 USD at MOH London · As of October 29, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436045603 or 436045603. Listed at 10 retailers as of October 29, 2026, with prices from $880 to $4,870, a $3,990 spread on the same certified stone. MOH London lists it at $4,870. 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
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045603
Dimensions7.41 × 7.47 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
7.41 mm7.47 mm1.59 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436045603
Side View
Table 61.5%Crown 35.5°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.3%

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 30
Current: $4,870 USD|Low: $880 USD|High: $4,902 USD|Avg: $2,413 USD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 2$880 USD
Retailer 4$1,414 USD
Retailer 5$1,456 USD
Retailer 7$2,081 USD
Retailer 3$2,386 USD
Retailer 6$2,810 USD
Retailer 8$3,375 USD
MOH London$4,870 USD

12 data points across 8 retailers

10 retailers$880 USD to $4,870 USD

A
Cheapest Retailer
-
$880 USD
B+
Retailer 2
-
$1,300 USD
View
B+
Retailer 3
-
$1,414 USD
View
B+
Retailer 4
-
$1,456 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,508 USD
View
Retailer 6
-
$1,508 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$2,386 USD
View
B
Retailer 8
-
$2,810 USD
View
B
Retailer 9
-
$2,826 USD
View
Most Expensive
B
MOH London
LG436045603 · Oct 29
$4,870 USD
£3,835 GBP
View
9 more retailers have this diamond
Prices start from $880 USDSave up to $3,990 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
$880 USD