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Radiant|Lab Grown|IGI

1.21ct D VVS1 Radiant Lab Grown Diamond

GD • D/VVS1 • IGI LG623420555

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

Certificate IGI LG623420555

Diamond specifications and retailer prices

From HK$1,624 HKD
As of November 4, 2026
Save HK$13,989 HKD (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$15,613 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 VVS1 clarity (very-very-slightly-included), with a standard cut grade and certified by IGI LG623420555 or 623420555. Listed at 21 retailers as of November 4, 2026, with prices from HK$1,624 to HK$15,613, a HK$13,989 spread on the same certified stone. Do Amore Diamonds lists it at HK$15,613. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
D
Colour
VVS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623420555
Dimensions7.65 × 5.23 × 3.55 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.65 mm5.23 mm1.21 ctD / VVS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623420555
Side View
Table 64.0%Crown 41.9°Girdle: MediumPavilion 37.7°Culet: NoneDepth 67.9%

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$4,119 HKD|Low: HK$1,561 HKD|High: HK$15,064 HKD|Avg: HK$5,188 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
Retailer 16
Retailer 17
November 5, 2026
Retailer 4HK$1,624 HKD
Retailer 14HK$1,812 HKD
Retailer 3HK$1,891 HKD
Retailer 2HK$2,016 HKD
Retailer 17HK$2,016 HKD
Retailer 7HK$2,715 HKD
Retailer 9HK$3,225 HKD
Retailer 11HK$3,844 HKD
Retailer 1HK$4,119 HKD
Retailer 10HK$5,445 HKD
Retailer 16HK$6,512 HKD
Retailer 5HK$7,163 HKD
Retailer 6HK$7,454 HKD
Retailer 15HK$8,395 HKD
Retailer 8HK$8,725 HKD
Retailer 12HK$8,921 HKD
Retailer 13HK$14,750 HKD

45 data points across 17 retailers

21 retailersHK$1,624 HKD to HK$15,613 HKD

A
Cheapest Retailer
-
HK$1,624 HKD
A
Retailer 2
-
HK$1,812 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$1,891 HKD
View
Retailer 4
-
HK$2,016 HKD
View
Price last confirmed 11 days ago
A
Retailer 5
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HK$2,016 HKD
View
B+
Retailer 6
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HK$2,715 HKD
View
B+
Retailer 7
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HK$3,225 HKD
View
B+
Retailer 8
-
HK$3,570 HKD
View
B+
Retailer 9
-
HK$3,844 HKD
View
B+
Retailer 10
-
HK$4,119 HKD
View
B+
Retailer 11
-
HK$5,445 HKD
View
B
Retailer 12
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HK$6,512 HKD
View
B
Retailer 13
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HK$7,163 HKD
View
Retailer 14
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HK$7,454 HKD
View
Price last confirmed 28 days ago
Retailer 15
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HK$8,395 HKD
View
Price last confirmed 18 days ago
B
Retailer 16
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HK$8,505 HKD
View
B
Retailer 17
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HK$8,725 HKD
View
B
Retailer 18
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HK$8,921 HKD
View
B
Retailer 19
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HK$9,548 HKD
View
B
Retailer 20
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HK$14,750 HKD
View
Most Expensive
B
Do Amore Diamonds
27-EBF7213F3 · Nov 4
HK$15,613 HKD
$1,990 USD
View
20 more retailers have this diamond
Prices start from HK$1,624 HKDSave up to HK$13,989 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$1,624 HKD