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Radiant|Lab Grown|IGI

6.40ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG839621746

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

Certificate IGI LG839621746

Diamond specifications and retailer prices

From HK$8,991 HKD
$1,146 USD
As of October 30, 2026
Save HK$70,800 HKD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$79,791 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 6.4ct lab-grown radiant diamond

This 6.4ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839621746 or 839621746. Listed at 12 retailers as of October 30, 2026, with prices from HK$8,991 to HK$79,791, a HK$70,800 spread on the same certified stone. Do Amore Diamonds lists it at HK$79,791. 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

6.40
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839621746
Dimensions12.85 × 9.19 × 6.16 mm
L/W Ratio1.40
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.85 mm9.19 mm6.40 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839621746
Side View
Table 66.0%Crown 44.9°Girdle: MediumPavilion 35.8°Culet: NoneDepth 67.0%

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$79,791 HKD|Low: HK$8,991 HKD|High: HK$115,018 HKD|Avg: HK$36,041 HKD|-5.7%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 10HK$8,991 HKD
Retailer 5HK$12,154 HKD
Retailer 12HK$16,562 HKD
Retailer 7HK$16,594 HKD
Retailer 9HK$20,540 HKD
Retailer 8HK$21,307 HKD
Retailer 11HK$21,568 HKD
Retailer 3HK$29,466 HKD
Retailer 4HK$35,149 HKD
Retailer 6HK$37,166 HKD
Retailer 2HK$60,961 HKD
Do Amore DiamondsHK$79,791 HKD

24 data points across 12 retailers

12 retailersHK$8,991 HKD to HK$79,791 HKD

A
Cheapest Retailer
-
HK$8,991 HKD
$1,146 USD
A
Retailer 2
-
HK$12,154 HKD
£1,220 GBP
View
A
Retailer 3
-
HK$16,562 HKD
$2,111 USD
View
B+
Retailer 4
-
HK$16,594 HKD
$2,115 USD
View
A
Retailer 5
-
HK$20,540 HKD
$2,618 USD
View
Retailer 6
-
HK$21,307 HKD
A$4,178 AUD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
HK$21,568 HKD
$2,749 USD
View
B+
Retailer 8
-
HK$29,466 HKD
$3,756 USD
View
B
Retailer 9
-
HK$35,149 HKD
$4,480 USD
View
B+
Retailer 10
-
HK$37,166 HKD
£3,730 GBP
View
B
Retailer 11
-
HK$60,961 HKD
$7,770 USD
View
Most Expensive
B
Do Amore Diamonds
27-34299B087 · Oct 31
HK$79,791 HKD
$10,170 USD
View
11 more retailers have this diamond
Prices start from HK$8,991 HKDSave up to HK$70,800 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
6.40ct Radiant
HK$8,991 HKD