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Asscher|Lab Grown|IGI

1.00ct D SI1 Asscher Lab Grown Diamond

ID • D/SI1 • IGI LG807663059

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG807663059

Diamond specifications and retailer prices

From £107 GBP
As of November 4, 2026
Save £646 GBP (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £753 GBP at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1ct lab-grown asscher diamond

This 1ct lab-grown asscher sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG807663059 or 807663059. Listed at 17 retailers as of November 4, 2026, with prices from £107 to £753, a £646 spread on the same certified stone. Reve Diamonds lists it at £753. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle47.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807663059
Dimensions5.61 × 5.45 × 3.93 mm
L/W Ratio1.03
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
5.61 mm5.45 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807663059
Side View
Table 61.0%Crown 32°Girdle: MediumPavilion 47.8°CuletDepth 72.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £225 GBP|Low: £105 GBP|High: £753 GBP|Avg: £265 GBP|+3.8%
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 14£107 GBP
Retailer 13£124 GBP
Retailer 10£129 GBP
Retailer 5£132 GBP
Retailer 7£157 GBP
Retailer 1£225 GBP
Retailer 6£226 GBP
Retailer 2£246 GBP
Retailer 3£251 GBP
Retailer 11£347 GBP
Retailer 12£426 GBP
Retailer 4£467 GBP
Retailer 8£498 GBP
Retailer 9£617 GBP
Reve Diamonds£753 GBP

33 data points across 15 retailers

17 retailers£107 GBP to £753 GBP

A
Cheapest Retailer
-
£107 GBP
A
Retailer 2
-
£124 GBP
View
A
Retailer 3
-
£129 GBP
View
Final sale: no returns
Retailer 4
-
£129 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£132 GBP
View
A
Retailer 6
-
£157 GBP
View
A
Retailer 7
-
£225 GBP
View
Retailer 8
-
£226 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£246 GBP
View
A
Retailer 10
-
£251 GBP
View
B+
Retailer 11
-
£347 GBP
View
Retailer 12
-
£391 GBP
View
Price last confirmed 117 days ago
B
Retailer 13
-
£426 GBP
View
B
Retailer 14
-
£467 GBP
View
B
Retailer 15
-
£498 GBP
View
B
Retailer 16
-
£617 GBP
View
Most Expensive
B
Reve Diamonds
379D0A863 · Nov 4
£753 GBP
$1,014 USD
View
16 more retailers have this diamond
Prices start from £107 GBPSave up to £646 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
1.00ct Asscher
£107 GBP