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Radiant|Lab Grown|IGI

1.21ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG799677049

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

Certificate IGI LG799677049

Diamond specifications and retailer prices

From HK$1,922 HKD
As of November 4, 2026
Save HK$8,575 HKD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$14,554 HKD at Rare Carat · As of October 18, 2026
View at Rare Carat

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 LG799677049 or 799677049. Listed at 21 retailers as of November 4, 2026, with a 446% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.6°
Pavilion angle30.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799677049
Dimensions8.05 × 5.11 × 3.33 mm
L/W Ratio1.58
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
8.05 mm5.11 mm1.21 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799677049
Side View
Table 62.0%Crown 46.6°Girdle: Slightly ThickPavilion 30.7°Culet: NoneDepth 65.2%

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$14,554 HKD|Low: HK$1,922 HKD|High: HK$14,789 HKD|Avg: HK$5,591 HKD|-1.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 21
Retailer 22
November 4, 2026
Retailer 4HK$1,922 HKD
Retailer 7HK$2,150 HKD
Retailer 19HK$2,236 HKD
Retailer 8HK$2,385 HKD
Retailer 22HK$2,385 HKD
Retailer 3HK$2,707 HKD
Retailer 15HK$3,923 HKD
Retailer 18HK$3,962 HKD
Retailer 9HK$4,009 HKD
Retailer 16HK$4,119 HKD
Retailer 6HK$4,252 HKD
Retailer 2HK$4,488 HKD
Retailer 13HK$5,845 HKD
Retailer 21HK$6,018 HKD
Retailer 5HK$7,673 HKD
Retailer 12HK$7,705 HKD
Retailer 20HK$7,705 HKD
Retailer 14HK$8,081 HKD
Retailer 10HK$9,321 HKD
Retailer 17HK$9,564 HKD
Retailer 11HK$10,498 HKD
Rare CaratHK$14,554 HKD

41 data points across 22 retailers

21 retailersHK$1,922 HKD to HK$10,498 HKD

A
Cheapest Retailer
-
HK$1,922 HKD
A
Retailer 2
-
HK$2,150 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$2,236 HKD
View
Retailer 4
-
HK$2,385 HKD
View
Price last confirmed 10 days ago
A
Retailer 5
-
HK$2,385 HKD
View
A
Retailer 6
-
HK$2,707 HKD
View
A
Retailer 7
-
HK$3,962 HKD
View
A
Retailer 8
-
HK$4,009 HKD
View
A
Retailer 9
-
HK$4,119 HKD
View
A
Retailer 10
-
HK$4,252 HKD
View
A
Retailer 11
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HK$4,488 HKD
View
B+
Retailer 12
-
HK$5,845 HKD
View
B+
Retailer 13
-
HK$6,018 HKD
View
B+
Retailer 14
-
HK$7,673 HKD
View
B+
Retailer 15
-
HK$7,705 HKD
View
B+
Retailer 16
-
HK$7,705 HKD
View
B+
Retailer 17
-
HK$8,081 HKD
View
B
Retailer 18
-
HK$9,321 HKD
View
B+
Retailer 19
-
HK$9,564 HKD
View
B
Retailer 20
-
HK$10,498 HKD
View
Most Expensive
Rare Carat
A10-142A · Oct 18
HK$14,554 HKD
$1,855 USD
View
Price last confirmed 16 days ago
20 more retailers have this diamond
Prices start from HK$1,922 HKDSave up to HK$8,575 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$1,922 HKD