Radiant|Lab Grown|IGI

1.02ct D SI2 Radiant Lab Grown Diamond

ID • D/SI2 • IGI LG472171946

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

Certificate IGI LG472171946

Diamond specifications and retailer prices

From $628 USD
As of October 30, 2026
Save $1,234 USD (66%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,050 USD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 1.02ct lab-grown radiant diamond

This 1.02ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG472171946 or 472171946. Listed at 11 retailers as of October 30, 2026, with a 196% 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

1.02
Carat
D
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.5°
Pavilion angle30.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG472171946
Dimensions6.36 × 5.03 × 3.47 mm
L/W Ratio1.26
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
6.36 mm5.03 mm1.02 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG472171946
Side View
Table 65.0%Crown 49.5°Girdle: MediumPavilion 30.1°Culet: NoneDepth 69.0%

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 30
Current: $2,050 USD|Low: $501 USD|High: $3,108 USD|Avg: $1,265 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 5$628 USD
Retailer 9$684 USD
Retailer 10$703 USD
Retailer 7$729 USD
Retailer 6$890 USD
Retailer 8$1,193 USD
Retailer 2$1,221 USD
Retailer 4$1,862 USD
NZ Jewellers$2,050 USD
Retailer 3$3,087 USD

42 data points across 10 retailers

11 retailers$628 USD to $1,862 USD

B+
Cheapest Retailer
-
$628 USD
B
Retailer 2
-
$684 USD
View
B
Retailer 3
-
$703 USD
View
Final sale: no returns
Retailer 4
-
$729 USD
View
Price last confirmed 15 days ago
B
Retailer 5
-
$729 USD
View
B
Retailer 6
-
$890 USD
View
B
Retailer 7
-
$1,193 USD
View
B
Retailer 8
-
$1,221 USD
£962 GBP
View
B
Retailer 9
-
$1,862 USD
View
Most Expensive
NZ Jewellers
44153f0a-6297-4d48-825f-87e7524fe509 · Oct 28
$2,050 USD
View
Price under review
9 more retailers have this diamond
Prices start from $628 USDSave up to $1,234 USD

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+
1.02ct Radiant
$628 USD