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Radiant|Lab Grown|IGI

1.21ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG651411202

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

Certificate IGI LG651411202

Diamond specifications and retailer prices

From HK$1,569 HKD
$200 USD
As of October 30, 2026
Save HK$15,968 HKD (91%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$17,537 HKD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG651411202 or 651411202. Listed at 25 retailers as of October 27, 2026, with prices from HK$1,569 to HK$17,537, a HK$15,968 spread on the same certified stone. Queensmith lists it at HK$17,537. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651411202
Dimensions7.90 × 5.43 × 3.49 mm
L/W Ratio1.45
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
7.90 mm5.43 mm1.21 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651411202
Side View
Table 62.0%Crown 38.1°Girdle: MediumPavilion 35.5°Culet: NoneDepth 64.3%

Caratlytics Score

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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: Oct 30
Current: HK$8,629 HKD|Low: HK$1,569 HKD|High: HK$15,064 HKD|Avg: HK$5,776 HKD|-7.4%
Retailer 1
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Retailer 22
Retailer 23
November 1, 2026
Retailer 23HK$1,569 HKD
Retailer 10HK$1,757 HKD
Retailer 20HK$1,828 HKD
Retailer 5HK$1,954 HKD
Retailer 11HK$1,954 HKD
Retailer 12HK$2,276 HKD
Retailer 8HK$2,777 HKD
Retailer 14HK$3,013 HKD
Retailer 18HK$3,698 HKD
Retailer 3HK$3,868 HKD
Retailer 17HK$4,005 HKD
Retailer 22HK$4,739 HKD
Retailer 19HK$5,263 HKD
Retailer 4HK$6,292 HKD
Retailer 2HK$6,920 HKD
Retailer 15HK$8,268 HKD
Retailer 9HK$8,370 HKD
Retailer 13HK$8,575 HKD
Retailer 1HK$8,629 HKD
Retailer 7HK$9,378 HKD
Retailer 21HK$11,455 HKD
Retailer 16HK$14,828 HKD
Retailer 6HK$15,064 HKD

37 data points across 23 retailers

25 retailersHK$1,569 HKD to HK$17,537 HKD

A
Cheapest Retailer
-
HK$1,569 HKD
$200 USD
A
Retailer 2
-
HK$1,757 HKD
$224 USD
View
Final sale: no returns
A
Retailer 3
-
HK$1,828 HKD
$233 USD
View
Retailer 4
-
HK$1,954 HKD
$249 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
HK$1,954 HKD
$249 USD
View
A
Retailer 6
-
HK$2,276 HKD
£228 GBP
View
B+
Retailer 7
-
HK$2,777 HKD
$354 USD
View
A
Retailer 8
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HK$3,013 HKD
View
A
Retailer 9
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HK$3,698 HKD
ZAR 7,614 ZAR
View
A
Retailer 10
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HK$3,868 HKD
$493 USD
View
A
Retailer 11
-
HK$4,005 HKD
£402 GBP
View
A
Retailer 12
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HK$4,739 HKD
$604 USD
View
A
Retailer 13
-
HK$5,263 HKD
A$1,032 AUD
View
B+
Retailer 14
-
HK$6,292 HKD
$802 USD
View
B+
Retailer 15
-
HK$6,920 HKD
$882 USD
View
B+
Retailer 16
-
HK$8,268 HKD
$1,054 USD
View
B+
Retailer 17
-
HK$8,370 HKD
£840 GBP
View
B+
Retailer 18
-
HK$8,575 HKD
SGD 1,477 SGD
View
B+
Retailer 19
-
HK$8,629 HKD
£866 GBP
View
B
Retailer 20
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HK$9,378 HKD
$1,195 USD
View
Retailer 21
-
HK$11,455 HKD
$1,460 USD
View
Price last confirmed 11 days ago
Retailer 22
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HK$11,533 HKD
$1,470 USD
View
Price last confirmed 17 days ago
B
Retailer 23
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HK$14,828 HKD
$1,890 USD
View
B
Retailer 24
-
HK$15,064 HKD
$1,920 USD
View
Most Expensive
B
Queensmith
LG651411202 · Oct 27
HK$17,537 HKD
£1,760 GBP
View
24 more retailers have this diamond
Prices start from HK$1,569 HKDSave up to HK$15,968 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$1,569 HKD