CaratHunter
Plans
Radiant|Lab Grown|IGI

15.75ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG839643045

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

Certificate IGI LG839643045

Diamond specifications and retailer prices

From £2,079 GBP
$2,785 USD
As of October 31, 2026
Save £8,042 GBP (79%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £10,120 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 15.75ct lab-grown radiant diamond

This 15.75ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839643045 or 839643045. Listed at 3 retailers as of October 31, 2026, with prices from £2,079 to £10,120, a £8,042 spread on the same certified stone. Brilliant Earth lists it at £10,120. 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

15.75
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839643045
Dimensions17.82 × 12.37 × 8.17 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.82 mm12.37 mm15.75 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839643045
Side View
Table 68.0%Crown 47°Girdle: MediumPavilion 34.7°Culet: NoneDepth 66.0%

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 31
Current: £10,120 GBP|Low: £2,079 GBP|High: £10,120 GBP|Avg: £5,537 GBP
Brilliant Earth
Retailer 2
Retailer 3
November 1, 2026
Retailer 3£2,079 GBP
Retailer 2£2,894 GBP
Brilliant Earth£10,120 GBP

29 data points across 3 retailers

3 retailers£2,079 GBP to £10,120 GBP

A
Cheapest Retailer
-
£2,079 GBP
$2,785 USD
Final sale: no returns
A
Retailer 2
-
£2,894 GBP
View
Most Expensive
B
Brilliant Earth
21602368A · Oct 31
£10,120 GBP
$13,560 USD
View
2 more retailers have this diamond
Prices start from £2,079 GBPSave up to £8,042 GBP

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
15.75ct Radiant
£2,079 GBP