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Radiant|Lab Grown|IGI

1.21ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG787630559

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

Certificate IGI LG787630559

Diamond specifications and retailer prices

From HK$1,436 HKD
$183 USD
As of October 30, 2026
Save HK$7,515 HKD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$8,951 HKD at Reve Diamonds · As of November 1, 2026
View at Reve 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG787630559 or 787630559. Listed at 17 retailers as of October 30, 2026, with prices from HK$1,436 to HK$8,951, a HK$7,515 spread on the same certified stone. Reve Diamonds lists it at HK$8,951. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle21.1°
Pavilion angle32.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787630559
Dimensions7.43 × 5.20 × 3.50 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.43 mm5.20 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787630559
Side View
Table 65.0%Crown 21.1°Girdle: MediumPavilion 32.3°Culet: NoneDepth 67.3%

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$3,226 HKD|Low: HK$1,381 HKD|High: HK$8,951 HKD|Avg: HK$4,044 HKD|+4.6%
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
Reve Diamonds
November 2, 2026
Retailer 13HK$1,436 HKD
Retailer 7HK$1,601 HKD
Retailer 3HK$1,671 HKD
Retailer 4HK$1,781 HKD
Retailer 14HK$1,781 HKD
Retailer 10HK$2,949 HKD
Retailer 8HK$3,081 HKD
Retailer 2HK$3,154 HKD
Retailer 1HK$3,226 HKD
Retailer 5HK$4,308 HKD
Retailer 11HK$4,355 HKD
Retailer 15HK$5,735 HKD
Retailer 12HK$6,057 HKD
Retailer 6HK$6,163 HKD
Retailer 9HK$8,350 HKD
Reve DiamondsHK$8,951 HKD

45 data points across 16 retailers

17 retailersHK$1,436 HKD to HK$8,951 HKD

A
Cheapest Retailer
-
HK$1,436 HKD
$183 USD
A
Retailer 2
-
HK$1,601 HKD
$204 USD
View
Final sale: no returns
A
Retailer 3
-
HK$1,671 HKD
$213 USD
View
Retailer 4
-
HK$1,781 HKD
$227 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
HK$1,781 HKD
$227 USD
View
A
Retailer 6
-
HK$2,949 HKD
€358 EUR
View
A
Retailer 7
-
HK$3,081 HKD
ZAR 6,344 ZAR
View
A
Retailer 8
-
HK$3,154 HKD
$402 USD
View
A
Retailer 9
-
HK$3,226 HKD
£324 GBP
View
A
Retailer 10
-
HK$3,609 HKD
$460 USD
View
B+
Retailer 11
-
HK$4,308 HKD
$549 USD
View
B+
Retailer 12
-
HK$4,355 HKD
A$854 AUD
View
B+
Retailer 13
-
HK$5,735 HKD
$731 USD
View
B+
Retailer 14
-
HK$6,057 HKD
$772 USD
View
B
Retailer 15
-
HK$6,163 HKD
$785 USD
View
B
Retailer 16
-
HK$8,350 HKD
£838 GBP
View
Most Expensive
B
Reve Diamonds
6114E3983 · Nov 1
HK$8,951 HKD
$1,141 USD
View
16 more retailers have this diamond
Prices start from HK$1,436 HKDSave up to HK$7,515 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$1,436 HKD