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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 $1,038 AUD
$729 USD
As of October 30, 2026
Save $914 AUD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,385 AUD at NZ Jewellers · As of November 1, 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 30, 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,385 AUD|Low: $829 AUD|High: $4,786 AUD|Avg: $1,981 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7$1,038 AUD
Retailer 11$1,129 AUD
Retailer 3$1,162 AUD
Retailer 9$1,204 AUD
Retailer 8$1,452 AUD
Retailer 5$1,459 AUD
Retailer 2$1,932 AUD
Retailer 10$1,952 AUD
Retailer 6$2,967 AUD
NZ Jewellers$3,385 AUD
Retailer 4$4,755 AUD

43 data points across 11 retailers

12 retailers$1,038 AUD to $1,952 AUD

B+
Cheapest Retailer
-
$1,038 AUD
$729 USD
B
Retailer 2
-
$1,129 AUD
$793 USD
View
B
Retailer 3
-
$1,162 AUD
$816 USD
View
Final sale: no returns
Retailer 4
-
$1,204 AUD
$846 USD
View
Price last confirmed 19 days ago
B
Retailer 5
-
$1,204 AUD
$846 USD
View
B
Retailer 6
-
$1,452 AUD
$1,020 USD
View
B
Retailer 7
-
$1,459 AUD
$1,025 USD
View
B
Retailer 8
-
$1,932 AUD
£1,069 GBP
View
B
Retailer 9
-
$1,952 AUD
$1,371 USD
View
Retailer 10
-
$2,967 AUD
$2,084 USD
View
Price under review
Most Expensive
NZ Jewellers
ae1965fb-e8be-4d04-b242-c0bef01d2dc5 · Nov 1
$3,385 AUD
$2,378 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,038 AUDSave up to $914 AUD

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
$1,038 AUD