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Oval|Lab Grown|IGI

1.80ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG451057394

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451057394

Diamond specifications and retailer prices

From $990 USD
As of October 29, 2026
Save $4,001 USD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,991 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451057394 or 451057394. Listed at 10 retailers as of October 29, 2026, with prices from $990 to $4,991, a $4,001 spread on the same certified stone. MOH London lists it at $4,991. 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
I
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057394
Dimensions9.37 × 6.97 × 4.32 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Top View
9.37 mm6.97 mm1.80 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG451057394
Side View
Table 57.5%Crown 34.2°Girdle: STK-THKPavilion 41°Culet: NoneDepth 62.0%

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 29
Current: $4,991 USD|Low: $990 USD|High: $5,030 USD|Avg: $2,319 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
October 29, 2026
Retailer 4$990 USD
Retailer 2$1,332 USD
Retailer 8$1,449 USD
Retailer 9$1,491 USD
Retailer 5$1,545 USD
Retailer 11$2,134 USD
Retailer 6$2,444 USD
Retailer 10$2,880 USD
Retailer 7$2,896 USD
Retailer 3$3,459 USD
MOH London$4,991 USD

16 data points across 11 retailers

10 retailers$990 USD to $4,991 USD

A
Cheapest Retailer
-
$990 USD
B+
Retailer 2
-
$1,332 USD
View
B+
Retailer 3
-
$1,449 USD
View
B+
Retailer 4
-
$1,491 USD
View
Final sale: no returns
Retailer 5
-
$1,545 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$1,545 USD
View
B
Retailer 7
-
$2,444 USD
View
B
Retailer 8
-
$2,880 USD
View
B
Retailer 9
-
$2,896 USD
View
Most Expensive
B
MOH London
LG451057394 · Oct 29
$4,991 USD
£3,930 GBP
View
9 more retailers have this diamond
Prices start from $990 USDSave up to $4,001 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
$990 USD