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Asscher|Lab Grown|IGI

1.07ct D SI1 Asscher Lab Grown Diamond

VG • D/SI1 • IGI LG621426600

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG621426600

Diamond specifications and retailer prices

From £171 GBP
As of November 4, 2026
Save £787 GBP (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £958 GBP at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.07ct lab-grown asscher diamond

This 1.07ct lab-grown asscher sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG621426600 or 621426600. Listed at 15 retailers as of November 4, 2026, with prices from £171 to £958, a £787 spread on the same certified stone. Reve Diamonds lists it at £958. 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

1.07
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.9°
Pavilion angle44°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621426600
Dimensions5.70 × 5.64 × 3.62 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.70 mm5.64 mm1.07 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG621426600
Side View
Table 72.0%Crown 36.9°Girdle: MediumPavilion 44°Culet: NoneDepth 64.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £392 GBP|Low: £164 GBP|High: £958 GBP|Avg: £471 GBP|+3.5%
Retailer 1
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
Reve Diamonds
November 6, 2026
Retailer 10£171 GBP
Retailer 4£190 GBP
Retailer 2£198 GBP
Retailer 12£212 GBP
Retailer 14£212 GBP
Retailer 6£238 GBP
Retailer 9£360 GBP
Retailer 3£386 GBP
Retailer 1£392 GBP
Retailer 13£681 GBP
Retailer 8£684 GBP
Retailer 5£719 GBP
Retailer 11£802 GBP
Retailer 7£846 GBP
Reve Diamonds£958 GBP

46 data points across 15 retailers

15 retailers£171 GBP to £958 GBP

A
Cheapest Retailer
-
£171 GBP
A
Retailer 2
-
£190 GBP
View
Final sale: no returns
A
Retailer 3
-
£198 GBP
View
A
Retailer 4
-
£212 GBP
View
Retailer 5
-
£212 GBP
View
Price last confirmed 12 days ago
B+
Retailer 6
-
£238 GBP
View
B
Retailer 7
-
£360 GBP
View
B
Retailer 8
-
£386 GBP
View
B
Retailer 9
-
£392 GBP
View
B
Retailer 10
-
£681 GBP
View
C
Retailer 11
-
£684 GBP
View
B
Retailer 12
-
£719 GBP
View
B
Retailer 13
-
£802 GBP
View
B
Retailer 14
-
£846 GBP
View
Most Expensive
C
Reve Diamonds
2FD583599 · Nov 6
£958 GBP
$1,289 USD
View
14 more retailers have this diamond
Prices start from £171 GBPSave up to £787 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
1.07ct Asscher
£171 GBP