CaratHunter
Plans
Radiant|Lab Grown|IGI

4.51ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG839647920

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

Certificate IGI LG839647920

Diamond specifications and retailer prices

From HK$8,235 HKD
As of October 30, 2026
Save HK$31,307 HKD (79%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$39,542 HKD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 4.51ct lab-grown radiant diamond

This 4.51ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839647920 or 839647920. Listed at 17 retailers as of October 28, 2026, with prices from HK$8,235 to HK$39,542, a HK$31,307 spread on the same certified stone. Rare Carat lists it at HK$39,542. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.51
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839647920
Dimensions12.11 × 8.00 × 5.28 mm
L/W Ratio1.51
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.11 mm8.00 mm4.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839647920
Side View
Table 61.0%Crown 44.2°Girdle: MediumPavilion 32.4°Culet: NoneDepth 66.0%

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: Oct 30
Current: HK$39,542 HKD|Low: HK$6,818 HKD|High: HK$39,974 HKD|Avg: HK$18,096 HKD|-1.1%
Rare Carat
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
October 31, 2026
Retailer 8HK$6,818 HKD
Retailer 5HK$6,818 HKD
Retailer 14HK$8,235 HKD
Retailer 6HK$8,434 HKD
Retailer 16HK$10,693 HKD
Retailer 11HK$10,772 HKD
Retailer 17HK$11,415 HKD
Retailer 13HK$14,907 HKD
Retailer 15HK$15,136 HKD
Retailer 2HK$15,330 HKD
Retailer 7HK$19,285 HKD
Retailer 18HK$22,698 HKD
Retailer 9HK$23,775 HKD
Retailer 3HK$23,898 HKD
Retailer 4HK$24,424 HKD
Retailer 12HK$26,534 HKD
Retailer 10HK$33,721 HKD
Rare CaratHK$39,542 HKD

21 data points across 18 retailers

17 retailersHK$8,235 HKD to HK$39,542 HKD

Retailer 1
-
HK$6,818 HKD
£684 GBP
Price last confirmed 23 days ago
A
Retailer 2
-
HK$8,235 HKD
View
A
Retailer 3
-
HK$8,434 HKD
$1,075 USD
View
Retailer 4
-
HK$10,693 HKD
€1,298 EUR
View
Price last confirmed 7 days ago
A
Retailer 5
-
HK$10,772 HKD
£1,081 GBP
View
A
Retailer 6
-
HK$11,415 HKD
$1,455 USD
View
A
Retailer 7
-
HK$14,907 HKD
ZAR 30,695 ZAR
View
Retailer 8
-
HK$15,136 HKD
A$2,968 AUD
View
Price last confirmed 10 days ago
A
Retailer 9
-
HK$15,330 HKD
$1,954 USD
View
B+
Retailer 10
-
HK$19,285 HKD
$2,458 USD
View
B+
Retailer 11
-
HK$22,698 HKD
$2,893 USD
View
B+
Retailer 12
-
HK$23,775 HKD
SGD 4,095 SGD
View
B+
Retailer 13
-
HK$23,898 HKD
$3,046 USD
View
B+
Retailer 14
-
HK$24,424 HKD
$3,113 USD
View
B+
Retailer 15
-
HK$26,534 HKD
£2,663 GBP
View
B
Retailer 16
-
HK$33,721 HKD
$4,298 USD
View
Most Expensive
B
Rare Carat
172691-BB · Oct 28
HK$39,542 HKD
$5,040 USD
View
16 more retailers have this diamond
Prices start from HK$8,235 HKDSave up to HK$31,307 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
4.51ct Radiant
HK$8,235 HKD