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Oval|Lab Grown|IGI

1.80ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG451057750

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451057750

Diamond specifications and retailer prices

From $1,266 SGD
$990 USD
As of October 29, 2026
Save $5,305 SGD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,571 SGD at MOH London · As of October 27, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451057750 or 451057750. Listed at 12 retailers as of October 27, 2026, with prices from $1,266 to $6,571, a $5,305 spread on the same certified stone. MOH London lists it at $6,571. 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057750
Dimensions9.27 × 6.98 × 4.40 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.27 mm6.98 mm1.80 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057750
Side View
Table 58.0%Crown 36.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.0%

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: $6,571 SGD|Low: $1,266 SGD|High: $6,650 SGD|Avg: $3,308 SGD|+0.1%
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
October 30, 2026
Retailer 9$1,266 SGD
Retailer 8$1,980 SGD
Retailer 13$2,155 SGD
Retailer 14$2,218 SGD
Retailer 3$2,297 SGD
Retailer 10$2,297 SGD
Retailer 4$2,518 SGD
Retailer 5$3,112 SGD
Retailer 2$3,290 SGD
Retailer 11$3,615 SGD
Retailer 7$4,063 SGD
Retailer 12$4,307 SGD
MOH London$6,571 SGD
Retailer 6$6,579 SGD

36 data points across 14 retailers

12 retailers$1,266 SGD to $6,571 SGD

A
Cheapest Retailer
-
$1,266 SGD
$990 USD
B+
Retailer 2
-
$1,980 SGD
$1,549 USD
View
B+
Retailer 3
-
$2,155 SGD
$1,686 USD
View
B+
Retailer 4
-
$2,218 SGD
$1,735 USD
View
Final sale: no returns
Retailer 5
-
$2,297 SGD
$1,797 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$2,297 SGD
$1,797 USD
View
B+
Retailer 7
-
$2,518 SGD
$1,970 USD
View
B+
Retailer 8
-
$3,290 SGD
£2,027 GBP
View
B
Retailer 9
-
$3,615 SGD
$2,828 USD
View
B
Retailer 10
-
$4,063 SGD
$3,178 USD
View
B
Retailer 11
-
$4,307 SGD
$3,369 USD
View
Most Expensive
B
MOH London
LG451057750 · Oct 27
$6,571 SGD
£4,047 GBP
View
11 more retailers have this diamond
Prices start from $1,266 SGDSave up to $5,305 SGD

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
$1,266 SGD