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Radiant|Lab Grown|IGI

3.12ct E VVS1 Radiant Lab Grown Diamond

VG • E/VVS1 • IGI LG823694559

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

Certificate IGI LG823694559

Diamond specifications and retailer prices

From £787 GBP
$1,048 USD
As of October 26, 2026
Save £697 GBP (47%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,733 GBP at Rare Carat · As of October 5, 2026
View at Rare Carat

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 very-good cut grade and certified by IGI LG823694559 or 823694559. Listed at 4 retailers as of October 24, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.12
Carat
E
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823694559
Dimensions10.02 × 7.17 × 4.94 mm
L/W Ratio1.40
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.02 mm7.17 mm3.12 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823694559
Side View
Table 66.0%Crown 41.6°Girdle: Slightly ThickPavilion 35.9°Culet: NoneDepth 68.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: £2,733 GBP|Low: £342 GBP|High: £2,919 GBP|Avg: £1,416 GBP|-6.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 26, 2026
Retailer 14£478 GBP
Retailer 7£631 GBP
Retailer 2£787 GBP
Retailer 13£818 GBP
Retailer 9£846 GBP
Retailer 5£1,130 GBP
Retailer 10£1,410 GBP
Retailer 8£1,484 GBP
Retailer 6£1,545 GBP
Retailer 12£1,716 GBP
Retailer 3£1,719 GBP
Retailer 4£1,924 GBP
Retailer 11£2,185 GBP
Retailer 15£2,312 GBP
Rare Carat£2,733 GBP

24 data points across 15 retailers

4 retailers£787 GBP to £1,484 GBP

A
Cheapest Retailer
-
£787 GBP
$1,048 USD
B+
Retailer 2
-
£1,484 GBP
$1,977 USD
View
Retailer 3
-
£2,185 GBP
A$4,477 AUD
View
Price last confirmed 29 days ago
Most Expensive
Rare Carat
CN211-50A · Oct 5
£2,733 GBP
$3,640 USD
View
Price last confirmed 25 days ago
3 more retailers have this diamond
Prices start from £787 GBPSave up to £697 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
3.12ct Radiant
£787 GBP