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Radiant|Lab Grown|IGI

1.81ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG530293318

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG530293318

Diamond specifications and retailer prices

From $2,110 SGD
$1,650 USD
As of November 2, 2026
Save $2,750 SGD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,860 SGD at Friendly Diamonds · As of November 2, 2026
View at Friendly Diamonds

About this 1.81ct lab-grown radiant diamond

This 1.81ct lab-grown radiant 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 LG530293318 or 530293318. Listed at 12 retailers as of November 2, 2026, with prices from $2,110 to $4,860, a $2,750 spread on the same certified stone. Friendly Diamonds lists it at $4,860. 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

1.81
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.1°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG530293318
Dimensions7.95 × 6.00 × 4.17 mm
L/W Ratio1.32
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.95 mm6.00 mm1.81 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG530293318
Side View
Table 66.0%Crown 50.1°Girdle: MediumPavilion 32.5°Culet: NoneDepth 69.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $4,860 SGD|Low: $2,110 SGD|High: $8,553 SGD|Avg: $3,974 SGD
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5$2,110 SGD
Retailer 4$2,551 SGD
Retailer 8$2,856 SGD
Retailer 6$2,959 SGD
Retailer 9$3,172 SGD
Retailer 2$4,037 SGD
Retailer 7$4,632 SGD
Friendly Diamonds$4,860 SGD
Retailer 3$8,452 SGD

42 data points across 9 retailers

12 retailers$2,110 SGD to $4,860 SGD

B
Cheapest Retailer
-
$2,110 SGD
$1,650 USD
B
Retailer 2
-
$2,551 SGD
$1,995 USD
View
B
Retailer 3
-
$2,775 SGD
$2,170 USD
View
B
Retailer 4
-
$2,856 SGD
$2,233 USD
View
Final sale: no returns
B
Retailer 5
-
$2,959 SGD
$2,314 USD
View
Retailer 6
-
$2,959 SGD
$2,314 USD
View
Price last confirmed 22 days ago
B
Retailer 7
-
$3,172 SGD
$2,480 USD
View
B
Retailer 8
-
$4,037 SGD
£2,486 GBP
View
B
Retailer 9
-
$4,068 SGD
$3,181 USD
View
B
Retailer 10
-
$4,632 SGD
$3,622 USD
View
Most Expensive
B
Friendly Diamonds
1585640 · Nov 2
$4,860 SGD
$3,800 USD
View
10 more retailers have this diamond
Prices start from $2,110 SGDSave up to $2,750 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.

B
1.81ct Radiant
$2,110 SGD