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Round|Lab Grown|IGI

1.80ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG651482936

Shape and cutting style on the report: Round brilliant

Certificate IGI LG651482936

Diamond specifications and retailer prices

From $279 SGD
$218 USD
As of November 1, 2026
Save $1,447 SGD (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,726 SGD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 1.8ct lab-grown round diamond

This 1.8ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG651482936 or 651482936. Listed at 15 retailers as of November 1, 2026, with prices from $279 to $1,726, a $1,447 spread on the same certified stone. Brilliant Earth lists it at $1,726. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651482936
Dimensions7.80 × 7.74 × 4.80 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.80 mm7.74 mm1.80 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651482936
Side View
Table 59.0%Crown 35.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,726 SGD|Low: $268 SGD|High: $1,726 SGD|Avg: $650 SGD
Brilliant Earth
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 2, 2026
Retailer 8$279 SGD
Retailer 7$312 SGD
Retailer 14$323 SGD
Retailer 9$346 SGD
Retailer 5$350 SGD
Retailer 3$579 SGD
Retailer 15$593 SGD
Retailer 2$636 SGD
Retailer 13$685 SGD
Retailer 12$738 SGD
Retailer 10$1,112 SGD
Retailer 11$1,116 SGD
Retailer 6$1,163 SGD
Retailer 4$1,406 SGD
Brilliant Earth$1,726 SGD

41 data points across 15 retailers

15 retailers$279 SGD to $1,726 SGD

A
Cheapest Retailer
-
$279 SGD
$218 USD
A
Retailer 2
-
$312 SGD
$244 USD
View
Final sale: no returns
A
Retailer 3
-
$323 SGD
$253 USD
View
A
Retailer 4
-
$346 SGD
$271 USD
View
Retailer 5
-
$350 SGD
$274 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$579 SGD
€431 EUR
View
B+
Retailer 7
-
$593 SGD
$464 USD
View
A
Retailer 8
-
$636 SGD
£391 GBP
View
A
Retailer 9
-
$685 SGD
$536 USD
View
A
Retailer 10
-
$738 SGD
$577 USD
View
B+
Retailer 11
-
$1,112 SGD
$870 USD
View
B+
Retailer 12
-
$1,116 SGD
$873 USD
View
B
Retailer 13
-
$1,163 SGD
$910 USD
View
B
Retailer 14
-
$1,406 SGD
£866 GBP
View
Most Expensive
B
Brilliant Earth
11867105A · Nov 1
$1,726 SGD
$1,350 USD
View
14 more retailers have this diamond
Prices start from $279 SGDSave up to $1,447 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 Round
$279 SGD