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Radiant|Lab Grown|IGI

3.90ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG774634791

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

Certificate IGI LG774634791

Diamond specifications and retailer prices

From HK$5,045 HKD
$643 USD
As of October 31, 2026
Save HK$37,130 HKD (88%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$42,174 HKD at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 3.9ct lab-grown radiant diamond

This 3.9ct 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 LG774634791 or 774634791. Listed at 5 retailers as of October 29, 2026, with prices from HK$5,045 to HK$42,174, a HK$37,130 spread on the same certified stone. Frank Darling lists it at HK$42,174. 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

3.90
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.8°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG774634791
Dimensions11.01 × 7.80 × 5.25 mm
L/W Ratio1.41
Culet sizePointed
Top View
11.01 mm7.80 mm3.90 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG774634791
Side View
Table 67.0%Crown 45.8°Girdle: MediumPavilion 35.6°Culet: NoneDepth 67.3%

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 31
Current: HK$42,174 HKD|Low: HK$3,366 HKD|High: HK$44,642 HKD|Avg: HK$19,029 HKD|-5.4%
Frank Darling
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
October 27, 2026
Retailer 2HK$5,045 HKD
Retailer 12HK$5,257 HKD
Retailer 8HK$6,967 HKD
Retailer 4HK$7,398 HKD
Retailer 11HK$8,816 HKD
Retailer 6HK$12,483 HKD
Retailer 5HK$12,490 HKD
Retailer 15HK$15,663 HKD
Retailer 3HK$17,705 HKD
Retailer 10HK$18,720 HKD
Retailer 13HK$19,605 HKD
Retailer 9HK$29,225 HKD
Retailer 14HK$37,502 HKD
Frank DarlingHK$42,174 HKD
Retailer 7HK$44,642 HKD

16 data points across 15 retailers

5 retailersHK$5,045 HKD to HK$42,174 HKD

A
Cheapest Retailer
-
HK$5,045 HKD
$643 USD
Final sale: no returns
B+
Retailer 2
-
HK$6,967 HKD
$888 USD
View
Retailer 3
-
HK$18,720 HKD
$2,386 USD
View
Price last confirmed 26 days ago
Retailer 4
-
HK$29,225 HKD
$3,725 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Frank Darling
100751875740KD · Oct 29
HK$42,174 HKD
$5,375 USD
View
4 more retailers have this diamond
Prices start from HK$5,045 HKDSave up to HK$37,130 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
3.90ct Radiant
HK$5,045 HKD