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Oval|Lab Grown|IGI

1.80ct H SI1 Oval Lab Grown Diamond

ID • H/SI1 • IGI LG440012892

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG440012892

Diamond specifications and retailer prices

From $1,120 USD
As of November 6, 2026
Save $4,538 USD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,658 USD at MOH London · As of November 5, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440012892 or 440012892. Listed at 12 retailers as of November 5, 2026, with prices from $1,120 to $5,658, a $4,538 spread on the same certified stone. MOH London lists it at $5,658. 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
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440012892
Dimensions10.01 × 6.86 × 4.06 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
10.01 mm6.86 mm1.80 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG440012892
Side View
Table 62.0%Crown 31.5°Girdle: STK-THKPavilion 40.3°Culet: NoneDepth 59.2%

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: Nov 6
Current: $5,658 USD|Low: $1,120 USD|High: $5,749 USD|Avg: $2,831 USD|-0.3%
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
Retailer 14
Retailer 15
November 6, 2026
Retailer 8$1,120 USD
Retailer 10$1,712 USD
Retailer 14$1,863 USD
Retailer 15$1,917 USD
Retailer 3$1,986 USD
Retailer 11$1,986 USD
Retailer 7$2,028 USD
Retailer 4$2,155 USD
Retailer 5$2,659 USD
Retailer 2$2,785 USD
Retailer 12$3,119 USD
Retailer 9$3,425 USD
Retailer 13$3,723 USD
MOH London$5,658 USD
Retailer 6$5,687 USD

27 data points across 15 retailers

12 retailers$1,120 USD to $5,658 USD

A
Cheapest Retailer
-
$1,120 USD
B+
Retailer 2
-
$1,712 USD
View
B+
Retailer 3
-
$1,863 USD
View
B+
Retailer 4
-
$1,917 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,986 USD
View
Retailer 6
-
$1,986 USD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$2,155 USD
View
B
Retailer 8
-
$2,785 USD
View
B
Retailer 9
-
$3,119 USD
View
B
Retailer 10
-
$3,425 USD
View
B
Retailer 11
-
$3,723 USD
View
Most Expensive
B
MOH London
LG440012892 · Nov 5
$5,658 USD
£4,455 GBP
View
11 more retailers have this diamond
Prices start from $1,120 USDSave up to $4,538 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
$1,120 USD