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Asscher|Lab Grown|IGI

1.28ct D VS1 Asscher Lab Grown Diamond

EX • D/VS1 • IGI LG691578090

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG691578090

Diamond specifications and retailer prices

From £159 GBP
$214 USD
As of November 2, 2026
Save £762 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £922 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.28ct lab-grown asscher diamond

This 1.28ct lab-grown asscher sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG691578090 or 691578090. Listed at 19 retailers as of November 1, 2026, with prices from £159 to £922, a £762 spread on the same certified stone. Reve Diamonds lists it at £922. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691578090
Dimensions6.01 × 5.99 × 3.95 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
6.01 mm5.99 mm1.28 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691578090
Side View
Table 64.0%Crown 34.2°Girdle: MediumPavilion 40.5°Culet: NoneDepth 65.9%

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: Nov 2
Current: £185 GBP|Low: £159 GBP|High: £926 GBP|Avg: £463 GBP
Retailer 1
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Retailer 20
Reve Diamonds
November 3, 2026
Retailer 16£159 GBP
Retailer 9£177 GBP
Retailer 1£185 GBP
Retailer 19£197 GBP
Retailer 11£199 GBP
Retailer 5£265 GBP
Retailer 10£339 GBP
Retailer 18£341 GBP
Retailer 2£341 GBP
Retailer 12£365 GBP
Retailer 13£385 GBP
Retailer 6£407 GBP
Retailer 7£436 GBP
Retailer 14£482 GBP
Retailer 4£525 GBP
Retailer 20£634 GBP
Retailer 15£636 GBP
Retailer 17£648 GBP
Retailer 8£674 GBP
Retailer 3£795 GBP
Reve Diamonds£922 GBP

41 data points across 21 retailers

19 retailers£159 GBP to £922 GBP

A
Cheapest Retailer
-
£159 GBP
$214 USD
A
Retailer 2
-
£177 GBP
$238 USD
View
Final sale: no returns
A
Retailer 3
-
£185 GBP
$248 USD
View
A
Retailer 4
-
£197 GBP
$265 USD
View
A
Retailer 5
-
£339 GBP
$455 USD
View
A
Retailer 6
-
£341 GBP
ZAR 7,384 ZAR
View
A
Retailer 7
-
£341 GBP
€436 EUR
View
A
Retailer 8
-
£365 GBP
View
B+
Retailer 9
-
£385 GBP
$516 USD
View
Retailer 10
-
£407 GBP
View
Price last confirmed 11 days ago
B+
Retailer 11
-
£436 GBP
$585 USD
View
B+
Retailer 12
-
£482 GBP
A$996 AUD
View
Retailer 13
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£525 GBP
$705 USD
View
Price last confirmed 9 days ago
B
Retailer 14
-
£634 GBP
$851 USD
View
B
Retailer 15
-
£636 GBP
$854 USD
View
B+
Retailer 16
-
£648 GBP
$870 USD
View
B
Retailer 17
-
£674 GBP
$904 USD
View
B
Retailer 18
-
£795 GBP
View
Most Expensive
B
Reve Diamonds
B0AD1C470 · Nov 1
£922 GBP
$1,237 USD
View
18 more retailers have this diamond
Prices start from £159 GBPSave up to £762 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
1.28ct Asscher
£159 GBP