CaratHunter
Plans
Radiant|Lab Grown|IGI

3.12ct E VVS1 Radiant Lab Grown Diamond

ID • E/VVS1 • IGI LG602394663

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

Certificate IGI LG602394663

Diamond specifications and retailer prices

From £4,035 GBP
As of October 29, 2026
Save £712 GBP (15%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £4,747 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.12ct lab-grown radiant diamond

This 3.12ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG602394663 or 602394663. Listed at 2 retailers as of October 29, 2026, with prices from £4,035 to £4,747, a £712 spread on the same certified stone. Brilliant Earth lists it at £4,747. 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

3.12
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG602394663
Dimensions10.62 × 7.24 × 4.72 mm
L/W Ratio1.47
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.62 mm7.24 mm3.12 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG602394663
Side View
Table 62.0%Crown 39.5°Girdle: MediumPavilion 33°Culet: NoneDepth 65.2%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £4,747 GBP|Low: £3,688 GBP|High: £4,747 GBP|Avg: £4,274 GBP
Brilliant Earth
Retailer 2
Retailer 3
December 31, 2025
Retailer 2£3,688 GBP
Retailer 3£4,293 GBP
Brilliant Earth£4,747 GBP

6 data points across 3 retailers

2 retailers£4,035 GBP to £4,747 GBP

B
Cheapest Retailer
-
£4,035 GBP
Most Expensive
B
Brilliant Earth
8495788Y · Oct 29
£4,747 GBP
$6,360 USD
View
1 more retailer has this diamond
Prices start from £4,035 GBPSave up to £712 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.

B
3.12ct Radiant
£4,035 GBP