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Asscher|Lab Grown|IGI

3.12ct F VS1 Asscher Lab Grown Diamond

EX • F/VS1 • IGI LG643450927

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG643450927

Diamond specifications and retailer prices

From £499 GBP
$668 USD
As of November 1, 2026
Save £3,763 GBP (88%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,262 GBP at Brilliant Earth · As of October 31, 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 LG643450927 or 643450927. Listed at 19 retailers as of October 31, 2026, with prices from £499 to £4,262, a £3,763 spread on the same certified stone. Brilliant Earth lists it at £4,262. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG643450927
Dimensions7.97 × 7.97 × 5.21 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.97 mm7.97 mm3.12 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG643450927
Side View
Table 63.0%Crown 34.8°Girdle: MediumPavilion 40.8°Culet: NoneDepth 65.4%

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: Nov 1
Current: £4,262 GBP|Low: £499 GBP|High: £4,262 GBP|Avg: £1,519 GBP|+20.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
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Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 17
November 2, 2026
Retailer 17£499 GBP
Retailer 15£552 GBP
Retailer 16£649 GBP
Retailer 7£687 GBP
Retailer 14£699 GBP
Retailer 9£731 GBP
Retailer 2£912 GBP
Retailer 10£1,288 GBP
Retailer 12£1,325 GBP
Retailer 6£1,441 GBP
Retailer 5£1,763 GBP
Retailer 8£1,774 GBP
Retailer 3£1,823 GBP
Retailer 13£1,873 GBP
Retailer 11£2,416 GBP
Retailer 4£3,956 GBP
Brilliant Earth£4,262 GBP

44 data points across 17 retailers

19 retailers£499 GBP to £4,262 GBP

A
Cheapest Retailer
-
£499 GBP
$668 USD
Final sale: no returns
Retailer 2
-
£552 GBP
$740 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
£649 GBP
$870 USD
View
Retailer 4
-
£699 GBP
View
Price last confirmed 16 days ago
A
Retailer 5
-
£731 GBP
$979 USD
View
A
Retailer 6
-
£749 GBP
$1,004 USD
View
A
Retailer 7
-
£912 GBP
View
B+
Retailer 8
-
£1,288 GBP
A$2,656 AUD
View
B+
Retailer 9
-
£1,325 GBP
ZAR 28,675 ZAR
View
B+
Retailer 10
-
£1,418 GBP
View
Retailer 11
-
£1,441 GBP
A$2,970 AUD
View
Price last confirmed 25 days ago
B
Retailer 12
-
£1,763 GBP
$2,362 USD
View
B
Retailer 13
-
£1,774 GBP
View
B
Retailer 14
-
£1,823 GBP
$2,443 USD
View
Retailer 15
-
£1,873 GBP
$2,510 USD
View
Price last confirmed 14 days ago
B
Retailer 16
-
£2,054 GBP
$2,752 USD
View
B
Retailer 17
-
£2,416 GBP
View
B
Retailer 18
-
£3,956 GBP
$5,300 USD
View
Most Expensive
B
Brilliant Earth
18588021A · Oct 31
£4,262 GBP
$5,710 USD
View
18 more retailers have this diamond
Prices start from £499 GBPSave up to £3,763 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 Asscher
£499 GBP