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Oval|Lab Grown|IGI

1.80ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG445037555

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445037555

Diamond specifications and retailer prices

From $980 USD
As of October 31, 2026
Save $3,984 USD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,964 USD at MOH London · As of November 1, 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 LG445037555 or 445037555. Listed at 12 retailers as of October 31, 2026, with prices from $980 to $4,964, a $3,984 spread on the same certified stone. MOH London lists it at $4,964. 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
SymmetryVery Good
FluorescenceNone
Crown angle35.6°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445037555
Dimensions9.59 × 6.93 × 4.35 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.59 mm6.93 mm1.80 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445037555
Side View
Table 59.0%Crown 35.6°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 62.8%

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: Oct 31
Current: $4,964 USD|Low: $980 USD|High: $5,024 USD|Avg: $2,280 USD
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
November 2, 2026
Retailer 8$980 USD
Retailer 7$1,332 USD
Retailer 12$1,449 USD
Retailer 13$1,491 USD
Retailer 9$1,545 USD
Retailer 14$1,545 USD
Retailer 3$1,715 USD
Retailer 2$2,114 USD
Retailer 5$2,134 USD
Retailer 10$2,444 USD
Retailer 4$2,880 USD
Retailer 11$2,896 USD
Retailer 6$4,425 USD
MOH London$4,964 USD

40 data points across 14 retailers

12 retailers$980 USD to $4,964 USD

A
Cheapest Retailer
-
$980 USD
A
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 20 days ago
B+
Retailer 6
-
$1,545 USD
View
B+
Retailer 7
-
$1,715 USD
View
B+
Retailer 8
-
$2,114 USD
£1,665 GBP
View
B
Retailer 9
-
$2,444 USD
View
B
Retailer 10
-
$2,880 USD
View
B
Retailer 11
-
$2,896 USD
View
Most Expensive
B
MOH London
LG445037555 · Nov 1
$4,964 USD
£3,909 GBP
View
11 more retailers have this diamond
Prices start from $980 USDSave up to $3,984 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
$980 USD