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Radiant|Lab Grown|IGI

4.51ct D VS1 Radiant Lab Grown Diamond

VG • D/VS1 • IGI LG765631503

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

Certificate IGI LG765631503

Diamond specifications and retailer prices

From HK$7,155 HKD
$912 USD
As of October 30, 2026
Save HK$39,448 HKD (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$56,994 HKD at Queensmith · As of October 10, 2026
View at Queensmith

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 very-good cut grade and certified by IGI LG765631503 or 765631503. Listed at 23 retailers as of October 30, 2026, with a 551% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.51
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG765631503
Dimensions11.25 × 8.02 × 5.71 mm
L/W Ratio1.40
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.25 mm8.02 mm4.51 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG765631503
Side View
Table 70.0%Crown 39.7°Girdle: Slightly ThickPavilion 41.3°Culet: NoneDepth 71.2%

Caratlytics Score

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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$12,604 HKD|Low: HK$7,155 HKD|High: HK$81,517 HKD|Avg: HK$23,600 HKD|-2.6%
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 31, 2026
Retailer 7HK$7,155 HKD
Retailer 2HK$7,791 HKD
Retailer 20HK$7,927 HKD
Retailer 8HK$9,689 HKD
Retailer 6HK$10,898 HKD
Retailer 1HK$12,604 HKD
Retailer 16HK$12,679 HKD
Retailer 19HK$13,314 HKD
Retailer 5HK$16,837 HKD
Retailer 21HK$17,671 HKD
Retailer 12HK$17,788 HKD
Retailer 3HK$19,873 HKD
Retailer 11HK$22,957 HKD
Retailer 4HK$23,341 HKD
Retailer 13HK$25,932 HKD
Retailer 15HK$27,768 HKD
Retailer 17HK$28,095 HKD
Retailer 14HK$28,308 HKD
Retailer 10HK$28,855 HKD
Retailer 9HK$39,621 HKD
Retailer 18HK$46,603 HKD

31 data points across 21 retailers

23 retailersHK$7,155 HKD to HK$46,603 HKD

A
Cheapest Retailer
-
HK$7,155 HKD
$912 USD
A
Retailer 2
-
HK$7,791 HKD
$993 USD
View
A
Retailer 3
-
HK$7,927 HKD
£796 GBP
View
Retailer 4
-
HK$8,497 HKD
$1,083 USD
View
Price last confirmed 36 days ago
A
Retailer 5
-
HK$9,689 HKD
$1,235 USD
View
A
Retailer 6
-
HK$10,898 HKD
$1,389 USD
View
A
Retailer 7
-
HK$12,604 HKD
€1,530 EUR
View
A
Retailer 8
-
HK$12,679 HKD
£1,272 GBP
View
A
Retailer 9
-
HK$13,314 HKD
$1,697 USD
View
B+
Retailer 10
-
HK$16,837 HKD
$2,146 USD
View
B+
Retailer 11
-
HK$17,671 HKD
ZAR 36,386 ZAR
View
B+
Retailer 12
-
HK$17,788 HKD
A$3,488 AUD
View
B+
Retailer 13
-
HK$19,873 HKD
$2,533 USD
View
B+
Retailer 14
-
HK$22,957 HKD
£2,304 GBP
View
B+
Retailer 15
-
HK$23,341 HKD
$2,975 USD
View
B
Retailer 16
-
HK$25,932 HKD
$3,305 USD
View
B
Retailer 17
-
HK$27,768 HKD
A$5,445 AUD
View
B
Retailer 18
-
HK$28,095 HKD
$3,581 USD
View
B
Retailer 19
-
HK$28,308 HKD
£2,841 GBP
View
B
Retailer 20
-
HK$28,855 HKD
$3,678 USD
View
B
Retailer 21
-
HK$39,621 HKD
$5,050 USD
View
B
Retailer 22
-
HK$46,603 HKD
$5,940 USD
View
Most Expensive
Queensmith
LG765631503 · Oct 10
HK$56,994 HKD
£5,720 GBP
View
Price last confirmed 21 days ago
22 more retailers have this diamond
Prices start from HK$7,155 HKDSave up to HK$39,448 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$7,155 HKD