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Radiant|Lab Grown|IGI

1.03ct D SI2 Radiant Lab Grown Diamond

ID • D/SI2 • IGI LG472171381

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

Certificate IGI LG472171381

Diamond specifications and retailer prices

From HK$4,943 HKD
$630 USD
As of October 31, 2026
Save HK$9,807 HKD (66%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$16,233 HKD at NZ Jewellers · As of November 1, 2026
View at NZ Jewellers

About this 1.03ct lab-grown radiant diamond

This 1.03ct 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 LG472171381 or 472171381. Listed at 12 retailers as of October 31, 2026, with a 198% 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

1.03
Carat
D
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle30.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG472171381
Dimensions6.46 × 5.10 × 3.47 mm
L/W Ratio1.27
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
6.46 mm5.10 mm1.03 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG472171381
Side View
Table 62.5%Crown 41.7°Girdle: Slightly ThickPavilion 30.3°Culet: NoneDepth 68.0%

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 31
Current: HK$16,233 HKD|Low: HK$4,778 HKD|High: HK$24,611 HKD|Avg: HK$9,581 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 6HK$4,943 HKD
Retailer 9HK$4,974 HKD
Retailer 12HK$5,414 HKD
Retailer 4HK$5,570 HKD
Retailer 3HK$5,774 HKD
Retailer 10HK$5,774 HKD
Retailer 2HK$8,243 HKD
Retailer 5HK$9,142 HKD
Retailer 11HK$9,431 HKD
Retailer 8HK$14,750 HKD
NZ JewellersHK$16,233 HKD
Retailer 7HK$24,352 HKD

43 data points across 12 retailers

12 retailersHK$4,943 HKD to HK$14,750 HKD

B+
Cheapest Retailer
-
HK$4,943 HKD
$630 USD
B+
Retailer 2
-
HK$4,974 HKD
$634 USD
View
B
Retailer 3
-
HK$5,414 HKD
$690 USD
View
B
Retailer 4
-
HK$5,570 HKD
$710 USD
View
Final sale: no returns
Retailer 5
-
HK$5,774 HKD
$736 USD
View
Price last confirmed 16 days ago
B
Retailer 6
-
HK$5,774 HKD
$736 USD
View
B
Retailer 7
-
HK$8,243 HKD
£827 GBP
View
B
Retailer 8
-
HK$9,142 HKD
£917 GBP
View
B
Retailer 9
-
HK$9,431 HKD
$1,202 USD
View
B
Retailer 10
-
HK$14,750 HKD
$1,880 USD
View
Most Expensive
NZ Jewellers
778fde8f-ec66-46ae-9a88-26e73e576dcc · Nov 1
HK$16,233 HKD
$2,069 USD
View
Price under review
10 more retailers have this diamond
Prices start from HK$4,943 HKDSave up to HK$9,807 HKD

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+
1.03ct Radiant
HK$4,943 HKD