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Radiant|Lab Grown|IGI

1.01ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG474116512

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

Certificate IGI LG474116512

Diamond specifications and retailer prices

From $934 SGD
$729 USD
As of October 27, 2026
Save $823 SGD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,048 SGD at NZ Jewellers · As of October 28, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG474116512 or 474116512. Listed at 12 retailers as of October 27, 2026, with a 88% 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle51.5°
Pavilion angle30.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG474116512
Dimensions6.50 × 4.96 × 3.37 mm
L/W Ratio1.31
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.50 mm4.96 mm1.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG474116512
Side View
Table 63.5%Crown 51.5°Girdle: MediumPavilion 30.9°Culet: NoneDepth 67.9%

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: Oct 27
Current: $3,048 SGD|Low: $746 SGD|High: $4,309 SGD|Avg: $1,916 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 9$1,046 SGD
Retailer 7$1,084 SGD
Retailer 6$1,307 SGD
Retailer 4$1,314 SGD
Retailer 2$1,734 SGD
Retailer 8$1,757 SGD
Retailer 5$2,671 SGD
NZ Jewellers$3,048 SGD
Retailer 3$4,281 SGD

41 data points across 9 retailers

12 retailers$934 SGD to $1,757 SGD

B+
Cheapest Retailer
-
$934 SGD
$729 USD
B
Retailer 2
-
$1,016 SGD
$793 USD
View
B
Retailer 3
-
$1,046 SGD
$816 USD
View
Final sale: no returns
B
Retailer 4
-
$1,084 SGD
$846 USD
View
Price last confirmed 16 days ago
B
Retailer 5
-
$1,084 SGD
$846 USD
View
B
Retailer 6
-
$1,307 SGD
$1,020 USD
View
B
Retailer 7
-
$1,314 SGD
$1,025 USD
View
B
Retailer 8
-
$1,734 SGD
£1,066 GBP
View
B
Retailer 9
-
$1,757 SGD
$1,371 USD
View
B
Retailer 10
-
$2,671 SGD
$2,084 USD
View
Price under review
Most Expensive
B
NZ Jewellers
ae1965fb-e8be-4d04-b242-c0bef01d2dc5 · Oct 28
$3,048 SGD
$2,378 USD
View
Price under review
10 more retailers have this diamond
Prices start from $934 SGDSave up to $823 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
$934 SGD