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Asscher|Lab Grown|IGI

3.12ct F VS1 Asscher Lab Grown Diamond

ID • F/VS1 • IGI LG645489921

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG645489921

Diamond specifications and retailer prices

From £1,091 GBP
As of November 2, 2026
6 retailers carry this diamond
Most expensive: £2,508 GBP at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 3.12ct lab-grown asscher diamond

This 3.12ct lab-grown asscher sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG645489921 or 645489921. Listed at 6 retailers as of November 2, 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

3.12
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645489921
Dimensions8.04 × 7.82 × 5.36 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.04 mm7.82 mm3.12 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645489921
Side View
Table 67.0%Crown 30.1°Girdle: Slightly ThickPavilion 40.7°Culet: NoneDepth 68.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £2,508 GBP|Low: £366 GBP|High: £2,508 GBP|Avg: £1,144 GBP
Brilliant Earth
Retailer 2
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September 29, 2026
Retailer 17£383 GBP
Retailer 7£511 GBP
Retailer 9£545 GBP
Retailer 4£546 GBP
Retailer 14£639 GBP
Retailer 12£738 GBP
Retailer 2£919 GBP
Retailer 10£959 GBP
Retailer 3£1,009 GBP
Retailer 16£1,308 GBP
Retailer 6£1,450 GBP
Retailer 8£1,532 GBP
Retailer 5£1,547 GBP
Retailer 15£1,571 GBP
Retailer 11£1,847 GBP
Retailer 13£1,888 GBP
Brilliant Earth£2,508 GBP

12 data points across 17 retailers

6 retailers

Retailer 1
-
£545 GBP
HK$5,700 HKD
Price last confirmed 59 days ago
Retailer 2
-
£959 GBP
$1,285 USD
View
Price last confirmed 34 days ago
Retailer 3
-
£1,009 GBP
$1,352 USD
View
Price last confirmed 37 days ago
B+
Retailer 4
-
£1,091 GBP
View
Retailer 5
-
£1,847 GBP
$2,475 USD
View
Price last confirmed 35 days ago
Most Expensive
Brilliant Earth
16304840Y · Sep 28
£2,508 GBP
$3,360 USD
View
Price last confirmed 34 days ago
5 more retailers have this diamond
Prices start from £1,091 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 Asscher
£1,091 GBP