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Radiant|Lab Grown|IGI

1.21ct D VS1 Radiant Lab Grown Diamond

VG • D/VS1 • IGI LG831692380

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

Certificate IGI LG831692380

Diamond specifications and retailer prices

From HK$1,656 HKD
$211 USD
As of October 30, 2026
Save HK$7,973 HKD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$9,629 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 very-good cut grade and certified by IGI LG831692380 or 831692380. Listed at 19 retailers as of October 30, 2026, with prices from HK$1,656 to HK$9,629, a HK$7,973 spread on the same certified stone. Reve Diamonds lists it at HK$9,629. 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
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831692380
Dimensions8.07 × 5.21 × 3.46 mm
L/W Ratio1.55
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.07 mm5.21 mm1.21 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831692380
Side View
Table 64.0%Crown 35.5°Girdle: MED-STKPavilion 35.3°Culet: NoneDepth 66.4%

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: Oct 30
Current: HK$3,536 HKD|Low: HK$1,656 HKD|High: HK$9,629 HKD|Avg: HK$4,988 HKD
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
Retailer 18
Reve Diamonds
November 1, 2026
Retailer 4HK$1,656 HKD
Retailer 3HK$1,844 HKD
Retailer 16HK$1,914 HKD
Retailer 6HK$2,048 HKD
Retailer 12HK$2,736 HKD
Retailer 15HK$3,452 HKD
Retailer 5HK$3,515 HKD
Retailer 1HK$3,536 HKD
Retailer 8HK$3,680 HKD
Retailer 13HK$3,784 HKD
Retailer 18HK$3,954 HKD
Retailer 9HK$5,666 HKD
Retailer 14HK$6,583 HKD
Retailer 17HK$6,606 HKD
Retailer 7HK$6,660 HKD
Retailer 10HK$7,001 HKD
Retailer 11HK$8,211 HKD
Retailer 2HK$8,631 HKD
Reve DiamondsHK$9,629 HKD

6 data points across 19 retailers

19 retailersHK$1,656 HKD to HK$9,629 HKD

A
Cheapest Retailer
-
HK$1,656 HKD
$211 USD
A
Retailer 2
-
HK$1,844 HKD
$235 USD
View
Final sale: no returns
A
Retailer 3
-
HK$1,914 HKD
$244 USD
View
A
Retailer 4
-
HK$2,048 HKD
$261 USD
View
A
Retailer 5
-
HK$2,736 HKD
£275 GBP
View
A
Retailer 6
-
HK$3,452 HKD
€419 EUR
View
A
Retailer 7
-
HK$3,515 HKD
$448 USD
View
A
Retailer 8
-
HK$3,536 HKD
ZAR 7,281 ZAR
View
B+
Retailer 9
-
HK$3,680 HKD
$469 USD
View
A
Retailer 10
-
HK$3,784 HKD
£380 GBP
View
B+
Retailer 11
-
HK$3,954 HKD
$504 USD
View
B+
Retailer 12
-
HK$5,666 HKD
A$1,111 AUD
View
B
Retailer 13
-
HK$6,583 HKD
$839 USD
View
B
Retailer 14
-
HK$6,606 HKD
$842 USD
View
B
Retailer 15
-
HK$6,660 HKD
SGD 1,147 SGD
View
B
Retailer 16
-
HK$7,001 HKD
$892 USD
View
B
Retailer 17
-
HK$8,211 HKD
£824 GBP
View
B
Retailer 18
-
HK$8,631 HKD
$1,100 USD
View
Most Expensive
B
Reve Diamonds
6D92BDA8B · Nov 1
HK$9,629 HKD
$1,227 USD
View
18 more retailers have this diamond
Prices start from HK$1,656 HKDSave up to HK$7,973 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$1,656 HKD