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Radiant|Lab Grown|IGI

4.78ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG715588239

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

Certificate IGI LG715588239

Diamond specifications and retailer prices

From £1,944 GBP
$2,604 USD
As of October 24, 2026
2 retailers carry this diamond
Most expensive: £2,637 GBP at Rare Carat · As of July 27, 2026
View at Rare Carat

About this 4.78ct lab-grown radiant diamond

This 4.78ct lab-grown radiant sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG715588239 or 715588239. Listed at 2 retailers as of July 27, 2026. 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

4.78
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle55.2°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG715588239
Dimensions11.70 × 8.26 × 5.64 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
11.70 mm8.26 mm4.78 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG715588239
Side View
Table 64.0%Crown 55.2°Girdle: MediumPavilion 39.2°Culet: NoneDepth 68.3%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 24
Current: £2,637 GBP|Low: £364 GBP|High: £6,142 GBP|Avg: £1,513 GBP|-1.9%
Rare Carat
Retailer 2
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October 24, 2026
Retailer 14£378 GBP
Retailer 10£683 GBP
Retailer 4£794 GBP
Retailer 5£841 GBP
Retailer 8£876 GBP
Retailer 16£1,055 GBP
Retailer 6£1,275 GBP
Retailer 12£1,282 GBP
Retailer 9£1,351 GBP
Retailer 3£1,706 GBP
Retailer 13£1,835 GBP
Retailer 2£1,944 GBP
Retailer 15£2,077 GBP
Retailer 7£2,161 GBP
Rare Carat£2,637 GBP
Retailer 11£3,635 GBP

65 data points across 16 retailers

2 retailers£1,944 GBP to £2,637 GBP

Retailer 1
-
£1,944 GBP
$2,604 USD
Price last confirmed 7 days ago
Most Expensive
Rare Carat
LFE43A-27 · Jul 27
£2,637 GBP
$3,533 USD
View
Price last confirmed 96 days ago
1 more retailer has this diamond

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.

4.78ct Radiant
£1,944 GBP