Radiant|Lab Grown|IGI

12.59ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG844618078

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

Certificate IGI LG844618078

Diamond specifications and retailer prices

From £1,676 GBP
As of November 1, 2026
Save £1,577 GBP (48%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £4,076 GBP at Yorxs · As of October 23, 2026
View at Yorxs

About this 12.59ct lab-grown radiant diamond

This 12.59ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844618078 or 844618078. Listed at 6 retailers as of October 26, 2026, with a 94% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

12.59
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844618078
Dimensions16.53 × 11.44 × 7.82 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.53 mm11.44 mm12.59 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844618078
Side View
Table 72.0%Crown 43.9°Girdle: MediumPavilion 35.7°CuletDepth 68.4%

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: Nov 1
Current: £1,676 GBP|Low: £1,676 GBP|High: £4,076 GBP|Avg: £3,033 GBP|-13.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Yorxs
November 1, 2026
Retailer 1£1,676 GBP
Retailer 2£2,743 GBP
Retailer 3£2,926 GBP
Retailer 4£3,253 GBP
Retailer 5£3,874 GBP
Yorxs£4,076 GBP

26 data points across 6 retailers

6 retailers£1,676 GBP to £3,253 GBP

A
Cheapest Retailer
-
£1,676 GBP
A
Retailer 2
-
£2,743 GBP
$3,675 USD
View
A
Retailer 3
-
£2,926 GBP
$3,920 USD
View
A
Retailer 4
-
£3,253 GBP
$4,359 USD
View
Retailer 5
-
£3,874 GBP
A$7,985 AUD
View
Price last confirmed 9 days ago
Most Expensive
Yorxs
620917142 · Oct 23
£4,076 GBP
€5,201 EUR
View
Price last confirmed 8 days ago
5 more retailers have this diamond
Prices start from £1,676 GBPSave up to £1,577 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
12.59ct Radiant
£1,676 GBP