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Oval|Lab Grown|IGI

1.80ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG445039259

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445039259

Diamond specifications and retailer prices

From $930 USD
As of October 31, 2026
Save $4,809 USD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,739 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.8ct lab-grown oval diamond

This 1.8ct lab-grown oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445039259 or 445039259. Listed at 11 retailers as of October 29, 2026, with prices from $930 to $5,739, a $4,809 spread on the same certified stone. MOH London lists it at $5,739. 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

1.80
Carat
J
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445039259
Dimensions9.34 × 6.84 × 4.40 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.34 mm6.84 mm1.80 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445039259
Side View
Table 57.5%Crown 35.5°Girdle: STK-THKPavilion 41.2°Culet: NoneDepth 64.3%

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 31
Current: $5,739 USD|Low: $930 USD|High: $5,777 USD|Avg: $2,848 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 7$930 USD
Retailer 6$1,723 USD
Retailer 11$1,875 USD
Retailer 12$1,929 USD
Retailer 8$1,999 USD
Retailer 5$2,036 USD
Retailer 13$2,170 USD
Retailer 3$2,674 USD
Retailer 9$3,139 USD
Retailer 2$3,446 USD
Retailer 10$3,747 USD
Retailer 4$5,723 USD
MOH London$5,739 USD

16 data points across 13 retailers

11 retailers$930 USD to $5,739 USD

A
Cheapest Retailer
-
$930 USD
B+
Retailer 2
-
$1,723 USD
View
B+
Retailer 3
-
$1,875 USD
View
B+
Retailer 4
-
$1,929 USD
View
Final sale: no returns
Retailer 5
-
$1,999 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$1,999 USD
View
B+
Retailer 7
-
$2,170 USD
View
B
Retailer 8
-
$3,139 USD
View
B
Retailer 9
-
$3,446 USD
View
B
Retailer 10
-
$3,747 USD
View
Most Expensive
B
MOH London
LG445039259 · Oct 29
$5,739 USD
£4,519 GBP
View
10 more retailers have this diamond
Prices start from $930 USDSave up to $4,809 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
1.80ct Oval
$930 USD