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Radiant|Lab Grown|IGI

1.01ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG512221595

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

Certificate IGI LG512221595

Diamond specifications and retailer prices

From $818 SGD
As of November 6, 2026
Save $731 SGD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,666 SGD at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

About this 1.01ct lab-grown radiant diamond

This 1.01ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512221595 or 512221595. Listed at 13 retailers as of November 6, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.01
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle31°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512221595
Dimensions6.60 × 5.29 × 3.31 mm
L/W Ratio1.25
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
6.60 mm5.29 mm1.01 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512221595
Side View
Table 69.0%Crown 34.4°Girdle: MediumPavilion 31°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,666 SGD|Low: $784 SGD|High: $4,042 SGD|Avg: $1,607 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7$818 SGD
Retailer 11$889 SGD
Retailer 3$915 SGD
Retailer 9$948 SGD
Retailer 8$1,141 SGD
Retailer 5$1,173 SGD
Retailer 2$1,499 SGD
Retailer 10$1,548 SGD
Retailer 6$2,422 SGD
NZ Jewellers$2,666 SGD
Retailer 4$3,982 SGD

43 data points across 11 retailers

13 retailers$818 SGD to $1,548 SGD

B+
Cheapest Retailer
-
$818 SGD
B
Retailer 2
-
$889 SGD
View
B
Retailer 3
-
$915 SGD
View
Final sale: no returns
Retailer 4
-
$948 SGD
View
Price last confirmed 22 days ago
B
Retailer 5
-
$948 SGD
View
B
Retailer 6
-
$1,141 SGD
View
B
Retailer 7
-
$1,173 SGD
View
B
Retailer 8
-
$1,499 SGD
View
B
Retailer 9
-
$1,548 SGD
View
Retailer 10
-
$2,422 SGD
View
Price under review
Most Expensive
NZ Jewellers
d55dcdc9-aa00-4087-b55d-e7cf0ecb19d7 · Nov 6
$2,666 SGD
$2,080 USD
View
Price under review
10 more retailers have this diamond
Prices start from $818 SGDSave up to $731 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+
1.01ct Radiant
$818 SGD