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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 HK$5,720 HKD
$729 USD
As of October 30, 2026
Save HK$5,037 HKD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$18,657 HKD 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: HK$18,657 HKD|Low: HK$5,492 HKD|High: HK$26,375 HKD|Avg: HK$10,961 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7HK$5,720 HKD
Retailer 11HK$6,222 HKD
Retailer 3HK$6,402 HKD
Retailer 9HK$6,637 HKD
Retailer 8HK$8,003 HKD
Retailer 5HK$8,042 HKD
Retailer 2HK$10,650 HKD
Retailer 10HK$10,756 HKD
Retailer 6HK$16,350 HKD
NZ JewellersHK$18,657 HKD
Retailer 4HK$26,205 HKD

43 data points across 11 retailers

12 retailersHK$5,720 HKD to HK$10,756 HKD

B+
Cheapest Retailer
-
HK$5,720 HKD
$729 USD
B
Retailer 2
-
HK$6,222 HKD
$793 USD
View
B
Retailer 3
-
HK$6,402 HKD
$816 USD
View
Final sale: no returns
Retailer 4
-
HK$6,637 HKD
$846 USD
View
Price last confirmed 20 days ago
B
Retailer 5
-
HK$6,637 HKD
$846 USD
View
B
Retailer 6
-
HK$8,003 HKD
$1,020 USD
View
B
Retailer 7
-
HK$8,042 HKD
$1,025 USD
View
B
Retailer 8
-
HK$10,650 HKD
£1,069 GBP
View
B
Retailer 9
-
HK$10,756 HKD
$1,371 USD
View
Retailer 10
-
HK$16,350 HKD
$2,084 USD
View
Price under review
Most Expensive
NZ Jewellers
ae1965fb-e8be-4d04-b242-c0bef01d2dc5 · Nov 1
HK$18,657 HKD
$2,378 USD
View
Price under review
10 more retailers have this diamond
Prices start from HK$5,720 HKDSave up to HK$5,037 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+
1.01ct Radiant
HK$5,720 HKD