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Asscher|Lab Grown|IGI

12.03ct G VS1 Asscher Lab Grown Diamond

ID • G/VS1 • IGI LG678548673

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG678548673

Diamond specifications and retailer prices

From £1,565 GBP
As of November 1, 2026
Save £6,167 GBP (80%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £7,732 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 12.03ct lab-grown asscher diamond

This 12.03ct lab-grown asscher sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG678548673 or 678548673. Listed at 21 retailers as of October 31, 2026, with prices from £1,565 to £7,732, a £6,167 spread on the same certified stone. Brilliant Earth lists it at £7,732. 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

12.03
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678548673
Dimensions12.92 × 12.35 × 7.91 mm
L/W Ratio1.05
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.92 mm12.35 mm12.03 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678548673
Side View
Table 62.0%Crown 34.7°Girdle: Slightly ThickPavilion 39°Culet: NoneDepth 64.0%

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: £7,732 GBP|Low: £1,565 GBP|High: £7,732 GBP|Avg: £3,620 GBP
Brilliant Earth
Retailer 2
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Retailer 21
November 1, 2026
Retailer 13£1,565 GBP
Retailer 14£1,680 GBP
Retailer 16£1,828 GBP
Retailer 4£1,949 GBP
Retailer 12£1,949 GBP
Retailer 19£2,071 GBP
Retailer 10£2,255 GBP
Retailer 5£2,679 GBP
Retailer 15£2,683 GBP
Retailer 3£2,987 GBP
Retailer 17£3,017 GBP
Retailer 20£3,022 GBP
Retailer 9£3,043 GBP
Retailer 2£3,611 GBP
Retailer 6£3,697 GBP
Retailer 21£4,332 GBP
Retailer 18£4,936 GBP
Retailer 7£6,348 GBP
Retailer 11£6,524 GBP
Retailer 8£6,810 GBP
Brilliant Earth£7,732 GBP

30 data points across 21 retailers

21 retailers£1,565 GBP to £7,732 GBP

A
Cheapest Retailer
-
£1,565 GBP
Retailer 2
-
£1,680 GBP
$2,251 USD
View
Price last confirmed 23 days ago
A
Retailer 3
-
£1,828 GBP
$2,449 USD
View
Retailer 4
-
£1,949 GBP
$2,611 USD
View
Price last confirmed 21 days ago
Retailer 5
-
£1,949 GBP
$2,611 USD
View
Price last confirmed 23 days ago
A
Retailer 6
-
£2,071 GBP
$2,775 USD
View
A
Retailer 7
-
£2,255 GBP
HK$23,600 HKD
View
Retailer 8
-
£2,679 GBP
$3,590 USD
View
Price last confirmed 21 days ago
A
Retailer 9
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£2,683 GBP
View
A
Retailer 10
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£2,987 GBP
$4,002 USD
View
A
Retailer 11
-
£3,017 GBP
ZAR 65,311 ZAR
View
A
Retailer 12
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£3,022 GBP
€3,856 EUR
View
A
Retailer 13
-
£3,043 GBP
$4,077 USD
View
A
Retailer 14
-
£3,611 GBP
A$7,444 AUD
View
A
Retailer 15
-
£3,697 GBP
View
B+
Retailer 16
-
£4,332 GBP
$5,805 USD
View
B+
Retailer 17
-
£4,936 GBP
$6,614 USD
View
B+
Retailer 18
-
£6,348 GBP
$8,506 USD
View
B+
Retailer 19
-
£6,524 GBP
SGD 11,813 SGD
View
B
Retailer 20
-
£6,810 GBP
$9,124 USD
View
Most Expensive
B
Brilliant Earth
22254939A · Oct 31
£7,732 GBP
$10,360 USD
View
20 more retailers have this diamond
Prices start from £1,565 GBPSave up to £6,167 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
12.03ct Asscher
£1,565 GBP