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Radiant|Lab Grown|IGI

7.91ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG851649918

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

Certificate IGI LG851649918

Diamond specifications and retailer prices

From HK$37,526 HKD
$4,783 USD
As of October 31, 2026
Save HK$1,546 HKD (4%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$39,072 HKD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 7.91ct lab-grown radiant diamond

This 7.91ct lab-grown radiant sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG851649918 or 851649918. Listed at 2 retailers as of October 31, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

7.91
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851649918
Dimensions14.23 × 9.84 × 6.59 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.23 mm9.84 mm7.91 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851649918
Side View
Table 66.0%Crown 44°Girdle: MediumPavilion 35.3°CuletDepth 67.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: HK$39,072 HKD|Low: HK$37,526 HKD|High: HK$39,072 HKD|Avg: HK$38,041 HKD
Rare Carat
Retailer 2
November 1, 2026
Retailer 2HK$37,526 HKD
Rare CaratHK$39,072 HKD

2 data points across 2 retailers

2 retailersHK$37,526 HKD to HK$39,072 HKD

B
Cheapest Retailer
-
HK$37,526 HKD
$4,783 USD
Most Expensive
B
Rare Carat
LGRA70-190304 · Nov 1
HK$39,072 HKD
$4,980 USD
View
1 more retailer has this diamond
Prices start from HK$37,526 HKDSave up to HK$1,546 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.

B
7.91ct Radiant
HK$37,526 HKD