CaratHunter
Plans
Asscher|Lab Grown|IGI

1.00ct D SI1 Asscher Lab Grown Diamond

ID • D/SI1 • IGI LG687546323

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG687546323

Diamond specifications and retailer prices

From £132 GBP
As of November 4, 2026
Save £700 GBP (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £832 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 LG687546323 or 687546323. Listed at 17 retailers as of November 4, 2026, with prices from £132 to £832, a £700 spread on the same certified stone. Reve Diamonds lists it at £832. 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 angle32.8°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687546323
Dimensions5.59 × 5.55 × 3.63 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
5.59 mm5.55 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687546323
Side View
Table 62.0%Crown 32.8°Girdle: MediumPavilion 38.5°Culet: NoneDepth 65.4%

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: Nov 4
Current: £288 GBP|Low: £132 GBP|High: £832 GBP|Avg: £388 GBP|+4.3%
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
Retailer 15
Retailer 16
Reve Diamonds
November 6, 2026
Retailer 10£132 GBP
Retailer 2£146 GBP
Retailer 12£152 GBP
Retailer 6£163 GBP
Retailer 13£163 GBP
Retailer 1£288 GBP
Retailer 5£288 GBP
Retailer 16£309 GBP
Retailer 15£314 GBP
Retailer 4£341 GBP
Retailer 3£368 GBP
Retailer 14£434 GBP
Retailer 11£524 GBP
Retailer 8£557 GBP
Retailer 7£564 GBP
Retailer 9£759 GBP
Reve Diamonds£832 GBP

45 data points across 17 retailers

17 retailers£132 GBP to £832 GBP

A
Cheapest Retailer
-
£132 GBP
A
Retailer 2
-
£146 GBP
View
Final sale: no returns
A
Retailer 3
-
£152 GBP
View
A
Retailer 4
-
£163 GBP
View
Retailer 5
-
£163 GBP
View
Price last confirmed 12 days ago
B+
Retailer 6
-
£288 GBP
View
B+
Retailer 7
-
£288 GBP
View
B+
Retailer 8
-
£309 GBP
View
Retailer 9
-
£314 GBP
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£341 GBP
View
B+
Retailer 11
-
£368 GBP
View
B
Retailer 12
-
£434 GBP
View
B
Retailer 13
-
£524 GBP
View
B
Retailer 14
-
£557 GBP
View
B
Retailer 15
-
£564 GBP
View
B
Retailer 16
-
£759 GBP
View
Most Expensive
B
Reve Diamonds
485F7E030 · Nov 4
£832 GBP
$1,120 USD
View
16 more retailers have this diamond
Prices start from £132 GBPSave up to £700 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
£132 GBP