Cushion|Lab Grown|IGI

1.00ct I VS1 Cushion Lab Grown Diamond

ID • I/VS1 • IGI LG844658042

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG844658042

Diamond specifications and retailer prices

From £153 GBP
HK$1,600 HKD
As of October 30, 2026
Save £331 GBP (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £647 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844658042 or 844658042. Listed at 12 retailers as of October 27, 2026, with a 217% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844658042
Dimensions6.77 × 5.16 × 3.16 mm
L/W Ratio1.31
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.77 mm5.16 mm1.00 ctI / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG844658042
Side View
Table 71.0%Crown 37.5°Girdle: MED-THKPavilion 33.7°Culet: NoneDepth 61.2%

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: £647 GBP|Low: £125 GBP|High: £647 GBP|Avg: £302 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 3£125 GBP
Retailer 11£153 GBP
Retailer 9£208 GBP
Retailer 13£212 GBP
Retailer 10£233 GBP
Retailer 2£234 GBP
Retailer 5£253 GBP
Retailer 12£319 GBP
Retailer 7£332 GBP
Retailer 6£349 GBP
Retailer 8£376 GBP
Retailer 4£484 GBP
MOH London£647 GBP

10 data points across 13 retailers

12 retailers£153 GBP to £484 GBP

A
Cheapest Retailer
-
£153 GBP
HK$1,600 HKD
A
Retailer 2
-
£208 GBP
View
A
Retailer 3
-
£212 GBP
$284 USD
View
Retailer 4
-
£233 GBP
ZAR 5,039 ZAR
View
Price last confirmed 8 days ago
A
Retailer 5
-
£234 GBP
€298 EUR
View
A
Retailer 6
-
£253 GBP
$339 USD
View
B+
Retailer 7
-
£319 GBP
$428 USD
View
B+
Retailer 8
-
£332 GBP
$445 USD
View
B+
Retailer 9
-
£349 GBP
$467 USD
View
B+
Retailer 10
-
£376 GBP
SGD 681 SGD
View
B
Retailer 11
-
£484 GBP
$649 USD
View
Most Expensive
MOH London
LG844658042 · Oct 21
£647 GBP
View
Price last confirmed 10 days ago
11 more retailers have this diamond
Prices start from £153 GBPSave up to £331 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
£153 GBP