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Radiant|Lab Grown|IGI

4.78ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG843694655

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

Certificate IGI LG843694655

Diamond specifications and retailer prices

From £446 GBP
$598 USD
As of October 31, 2026
Save £1,867 GBP (81%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,314 GBP at Rare Carat · As of October 28, 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 LG843694655 or 843694655. Listed at 3 retailers as of October 28, 2026, with prices from £446 to £2,314, a £1,867 spread on the same certified stone. Rare Carat lists it at £2,314. 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 angle55.9°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843694655
Dimensions11.79 × 8.40 × 5.65 mm
L/W Ratio1.40
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.79 mm8.40 mm4.78 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843694655
Side View
Table 65.0%Crown 55.9°Girdle: MediumPavilion 37.7°Culet: NoneDepth 67.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £2,314 GBP|Low: £446 GBP|High: £2,314 GBP|Avg: £853 GBP
Rare Carat
Retailer 2
Retailer 3
October 31, 2026
Retailer 3£446 GBP
Retailer 2£799 GBP
Rare Carat£2,314 GBP

19 data points across 3 retailers

3 retailers£446 GBP to £2,314 GBP

A
Cheapest Retailer
-
£446 GBP
$598 USD
Final sale: no returns
A
Retailer 2
-
£799 GBP
View
Most Expensive
B
Rare Carat
843694655 · Oct 28
£2,314 GBP
$3,100 USD
View
2 more retailers have this diamond
Prices start from £446 GBPSave up to £1,867 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
4.78ct Radiant
£446 GBP