Cushion|Lab Grown|IGI

1.00ct H VS1 Cushion Lab Grown Diamond

GD • H/VS1 • IGI LG812608540

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG812608540

Diamond specifications and retailer prices

From £244 GBP
As of October 31, 2026
Save £250 GBP (51%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £493 GBP at Taylor and Hart · As of November 4, 2026
View at Taylor and Hart

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG812608540 or 812608540. Listed at 6 retailers as of October 31, 2026, with prices from £244 to £493, a £250 spread on the same certified stone. Taylor and Hart lists it at £493. 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

1.00
Carat
H
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812608540
Dimensions7.62 × 4.91 × 3.31 mm
L/W Ratio1.55
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.62 mm4.91 mm1.00 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG812608540
Side View
Table 65.0%Crown 34.1°Girdle: MED-THKPavilion 41°Culet: NoneDepth 67.4%

Caratlytics Score

How it works →
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: Oct 31
Current: £244 GBP|Low: £239 GBP|High: £493 GBP|Avg: £363 GBP|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Taylor and Hart
October 31, 2026
Retailer 1£244 GBP
Retailer 3£337 GBP
Retailer 2£362 GBP
Retailer 4£387 GBP
Taylor and Hart£493 GBP

16 data points across 5 retailers

6 retailers£244 GBP to £493 GBP

A
Cheapest Retailer
-
£244 GBP
B+
Retailer 2
-
£333 GBP
View
B+
Retailer 3
-
£337 GBP
View
B+
Retailer 4
-
£362 GBP
View
Retailer 5
-
£387 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
Taylor and Hart
LZ2VJCG · Nov 4
£493 GBP
$666 USD
View
5 more retailers have this diamond
Prices start from £244 GBPSave up to £250 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 Cushion
£244 GBP