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Radiant|Lab Grown|IGI

1.21ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG660492735

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

Certificate IGI LG660492735

Diamond specifications and retailer prices

From HK$1,663 HKD
As of November 4, 2026
Save HK$14,264 HKD (90%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: HK$15,927 HKD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

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 LG660492735 or 660492735. Listed at 26 retailers as of November 4, 2026, with prices from HK$1,663 to HK$15,927, a HK$14,264 spread on the same certified stone. Do Amore Diamonds lists it at HK$15,927. 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 angle43.4°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660492735
Dimensions7.69 × 5.26 × 3.42 mm
L/W Ratio1.46
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
7.69 mm5.26 mm1.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660492735
Side View
Table 64.0%Crown 43.4°Girdle: MED-STKPavilion 33.7°Culet: NoneDepth 65.0%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: HK$4,245 HKD|Low: HK$1,663 HKD|High: HK$18,202 HKD|Avg: HK$6,484 HKD|+3.6%
Retailer 1
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
Retailer 15
November 4, 2026
Retailer 2HK$1,663 HKD
Retailer 15HK$1,922 HKD
Retailer 4HK$3,217 HKD
Retailer 11HK$3,813 HKD
Retailer 9HK$3,923 HKD
Retailer 6HK$3,962 HKD
Retailer 1HK$4,245 HKD
Retailer 7HK$4,653 HKD
Retailer 8HK$5,563 HKD
Retailer 14HK$6,645 HKD
Retailer 10HK$9,101 HKD
Retailer 5HK$9,305 HKD
Retailer 3HK$9,368 HKD
Retailer 12HK$13,809 HKD
Retailer 13HK$14,476 HKD

45 data points across 15 retailers

26 retailersHK$1,663 HKD to HK$15,927 HKD

A
Cheapest Retailer
-
HK$1,663 HKD
A
Retailer 2
-
HK$1,922 HKD
View
Final sale: no returns
Retailer 3
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HK$1,930 HKD
View
Price last confirmed 38 days ago
Retailer 4
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HK$2,032 HKD
View
Price last confirmed 36 days ago
Retailer 5
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HK$2,056 HKD
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Price last confirmed 32 days ago
A
Retailer 6
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HK$3,209 HKD
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A
Retailer 7
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HK$3,217 HKD
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A
Retailer 8
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HK$3,813 HKD
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A
Retailer 9
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HK$3,923 HKD
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A
Retailer 10
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HK$3,962 HKD
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A
Retailer 11
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HK$4,245 HKD
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A
Retailer 12
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HK$4,653 HKD
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A
Retailer 13
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HK$4,966 HKD
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A
Retailer 14
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HK$5,563 HKD
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B+
Retailer 15
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HK$6,645 HKD
View
B+
Retailer 16
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HK$7,304 HKD
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Retailer 17
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HK$7,304 HKD
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Price last confirmed 25 days ago
Retailer 18
-
HK$7,304 HKD
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Price last confirmed 35 days ago
B+
Retailer 19
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HK$8,646 HKD
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B+
Retailer 20
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HK$9,101 HKD
View
B+
Retailer 21
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HK$9,305 HKD
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Retailer 22
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HK$9,368 HKD
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Price last confirmed 27 days ago
B
Retailer 23
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HK$9,650 HKD
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B
Retailer 24
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HK$13,809 HKD
View
Retailer 25
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HK$14,476 HKD
View
Price last confirmed 17 days ago
Most Expensive
B
Do Amore Diamonds
27-80DE62B69 · Nov 4
HK$15,927 HKD
$2,030 USD
View
25 more retailers have this diamond
Prices start from HK$1,663 HKDSave up to HK$14,264 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$1,663 HKD