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Radiant|Lab Grown|IGI

0.51ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG790630389

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

Certificate IGI LG790630389

Diamond specifications and retailer prices

From HK$1,138 HKD
$145 USD
As of October 30, 2026
Save HK$5,528 HKD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$6,666 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790630389 or 790630389. Listed at 19 retailers as of October 29, 2026, with prices from HK$1,138 to HK$6,666, a HK$5,528 spread on the same certified stone. MOH London lists it at HK$6,666. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.2°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790630389
Dimensions5.56 × 3.91 × 2.72 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.56 mm3.91 mm0.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790630389
Side View
Table 67.0%Crown 50.2°Girdle: MediumPavilion 38.4°Culet: NoneDepth 69.6%

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$6,666 HKD|Low: HK$1,138 HKD|High: HK$6,845 HKD|Avg: HK$3,126 HKD|-2.6%
MOH London
Retailer 2
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Retailer 4
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Retailer 9
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Retailer 11
Retailer 12
Retailer 13
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Retailer 15
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Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 16HK$1,138 HKD
Retailer 3HK$1,271 HKD
Retailer 9HK$1,342 HKD
Retailer 19HK$1,420 HKD
Retailer 8HK$1,436 HKD
Retailer 18HK$1,922 HKD
Retailer 2HK$2,413 HKD
Retailer 6HK$2,578 HKD
Retailer 14HK$2,613 HKD
Retailer 10HK$2,768 HKD
Retailer 11HK$3,534 HKD
Retailer 7HK$3,631 HKD
Retailer 15HK$3,758 HKD
Retailer 4HK$3,913 HKD
Retailer 13HK$4,488 HKD
Retailer 5HK$4,558 HKD
Retailer 12HK$4,794 HKD
Retailer 17HK$4,973 HKD
MOH LondonHK$6,666 HKD

20 data points across 19 retailers

19 retailersHK$1,138 HKD to HK$6,666 HKD

A
Cheapest Retailer
-
HK$1,138 HKD
$145 USD
A
Retailer 2
-
HK$1,271 HKD
$162 USD
View
Final sale: no returns
A
Retailer 3
-
HK$1,342 HKD
$171 USD
View
A
Retailer 4
-
HK$1,420 HKD
$181 USD
View
A
Retailer 5
-
HK$1,436 HKD
$183 USD
View
A
Retailer 6
-
HK$1,922 HKD
$245 USD
View
A
Retailer 7
-
HK$2,413 HKD
£242 GBP
View
A
Retailer 8
-
HK$2,578 HKD
ZAR 5,308 ZAR
View
A
Retailer 9
-
HK$2,613 HKD
$333 USD
View
Retailer 10
-
HK$2,768 HKD
€336 EUR
View
Price last confirmed 7 days ago
B+
Retailer 11
-
HK$3,534 HKD
A$693 AUD
View
B+
Retailer 12
-
HK$3,631 HKD
A$712 AUD
View
B+
Retailer 13
-
HK$3,758 HKD
$479 USD
View
B+
Retailer 14
-
HK$3,913 HKD
SGD 674 SGD
View
B+
Retailer 15
-
HK$4,488 HKD
$572 USD
View
B+
Retailer 16
-
HK$4,558 HKD
$581 USD
View
B
Retailer 17
-
HK$4,794 HKD
$611 USD
View
B+
Retailer 18
-
HK$4,973 HKD
$634 USD
View
Most Expensive
B
MOH London
LG790630389 · Oct 29
HK$6,666 HKD
£669 GBP
View
18 more retailers have this diamond
Prices start from HK$1,138 HKDSave up to HK$5,528 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
0.51ct Radiant
HK$1,138 HKD