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Radiant|Lab Grown|IGI

1.21ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG831632172

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

Certificate IGI LG831632172

Diamond specifications and retailer prices

From HK$2,103 HKD
As of November 4, 2026
Save HK$9,985 HKD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$12,088 HKD at Michael Trio · As of November 4, 2026
View at Michael Trio

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831632172 or 831632172. Listed at 14 retailers as of November 4, 2026, with prices from HK$2,103 to HK$12,088, a HK$9,985 spread on the same certified stone. Michael Trio lists it at HK$12,088. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle53.9°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831632172
Dimensions8.08 × 5.14 × 3.29 mm
L/W Ratio1.57
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.08 mm5.14 mm1.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831632172
Side View
Table 63.0%Crown 53.9°Girdle: MED-STKPavilion 36°Culet: NoneDepth 64.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$12,088 HKD|Low: HK$2,103 HKD|High: HK$12,274 HKD|Avg: HK$6,040 HKD|-1.5%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 4, 2026
Retailer 7HK$2,103 HKD
Retailer 2HK$2,385 HKD
Retailer 4HK$3,138 HKD
Retailer 3HK$3,727 HKD
Retailer 13HK$4,025 HKD
Retailer 8HK$4,354 HKD
Retailer 12HK$5,696 HKD
Retailer 6HK$6,002 HKD
Retailer 10HK$7,501 HKD
Retailer 11HK$7,877 HKD
Retailer 9HK$8,089 HKD
Retailer 5HK$9,140 HKD
Retailer 14HK$9,352 HKD
Michael TrioHK$12,088 HKD

22 data points across 14 retailers

14 retailersHK$2,103 HKD to HK$12,088 HKD

A
Cheapest Retailer
-
HK$2,103 HKD
Final sale: no returns
A
Retailer 2
-
HK$2,385 HKD
View
A
Retailer 3
-
HK$3,138 HKD
View
A
Retailer 4
-
HK$3,727 HKD
View
A
Retailer 5
-
HK$4,025 HKD
View
A
Retailer 6
-
HK$4,354 HKD
View
A
Retailer 7
-
HK$5,696 HKD
View
B+
Retailer 8
-
HK$6,002 HKD
View
B+
Retailer 9
-
HK$7,501 HKD
View
B+
Retailer 10
-
HK$7,877 HKD
View
B+
Retailer 11
-
HK$8,089 HKD
View
B+
Retailer 12
-
HK$9,140 HKD
View
B+
Retailer 13
-
HK$9,352 HKD
View
Most Expensive
B+
Michael Trio
1699734723 · Nov 4
HK$12,088 HKD
SGD 2,082 SGD
View
13 more retailers have this diamond
Prices start from HK$2,103 HKDSave up to HK$9,985 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.

A
1.21ct Radiant
HK$2,103 HKD