CaratHunter
Plans
Asscher|Lab Grown|IGI

1.00ct D SI1 Asscher Lab Grown Diamond

ID • D/SI1 • IGI LG787660874

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG787660874

Diamond specifications and retailer prices

From £107 GBP
$144 USD
As of October 30, 2026
Save £649 GBP (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £757 GBP at Reve Diamonds · As of October 30, 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 LG787660874 or 787660874. Listed at 18 retailers as of October 30, 2026, with prices from £107 to £757, a £649 spread on the same certified stone. Reve Diamonds lists it at £757. 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 angle33.4°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787660874
Dimensions5.58 × 5.47 × 3.67 mm
L/W Ratio1.02
Girdle conditionFaceted
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
5.58 mm5.47 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787660874
Side View
Table 63.0%Crown 33.4°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 67.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £107 GBP|Low: £101 GBP|High: £757 GBP|Avg: £278 GBP|+6.7%
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
Reve Diamonds
October 30, 2026
Retailer 1£107 GBP
Retailer 6£130 GBP
Retailer 12£133 GBP
Retailer 8£160 GBP
Retailer 13£227 GBP
Retailer 10£229 GBP
Retailer 7£247 GBP
Retailer 9£253 GBP
Retailer 3£336 GBP
Retailer 5£419 GBP
Retailer 11£469 GBP
Retailer 4£470 GBP
Retailer 2£609 GBP
Reve Diamonds£757 GBP

33 data points across 14 retailers

18 retailers£107 GBP to £757 GBP

A
Cheapest Retailer
-
£107 GBP
$144 USD
A
Retailer 2
-
£122 GBP
$163 USD
View
A
Retailer 3
-
£130 GBP
$174 USD
View
Final sale: no returns
A
Retailer 4
-
£130 GBP
$174 USD
View
A
Retailer 5
-
£133 GBP
$178 USD
View
A
Retailer 6
-
£160 GBP
View
A
Retailer 7
-
£227 GBP
€290 EUR
View
A
Retailer 8
-
£229 GBP
View
A
Retailer 9
-
£247 GBP
$331 USD
View
A
Retailer 10
-
£253 GBP
View
B+
Retailer 11
-
£336 GBP
$450 USD
View
B
Retailer 12
-
£369 GBP
$494 USD
View
Retailer 13
-
£393 GBP
$526 USD
View
Price last confirmed 109 days ago
B
Retailer 14
-
£419 GBP
$561 USD
View
B
Retailer 15
-
£469 GBP
$628 USD
View
B
Retailer 16
-
£470 GBP
$630 USD
View
B
Retailer 17
-
£609 GBP
View
Most Expensive
B
Reve Diamonds
7AFD8FDEF · Oct 30
£757 GBP
$1,014 USD
View
17 more retailers have this diamond
Prices start from £107 GBPSave up to £649 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