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Cushion|Lab Grown|IGI

1.21ct G VS1 Cushion Lab Grown Diamond

VG • G/VS1 • IGI LG596324800

Certificate IGI LG596324800

Diamond specifications and retailer prices

From £481 GBP
As of November 5, 2026
Save £195 GBP (29%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £676 GBP at Zales · As of November 4, 2026
View at Zales

About this 1.21ct lab-grown cushion diamond

This 1.21ct lab-grown cushion sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG596324800 or 596324800. Listed at 4 retailers as of November 4, 2026, with prices from £481 to £676, a £195 spread on the same certified stone. Zales lists it at £676. 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

1.21
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG596324800
Dimensions7.15 × 5.93 × 3.82 mm
L/W Ratio1.21
Top View
7.15 mm5.93 mm1.21 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG596324800
Side View
Table 56.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 64.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £481 GBP|Low: £481 GBP|High: £817 GBP|Avg: £683 GBP
Retailer 1
Retailer 2
Retailer 3
Zales
September 26, 2026
Retailer 1£481 GBP
Retailer 3£565 GBP
Retailer 2£676 GBP
Zales£676 GBP

11 data points across 4 retailers

4 retailers£481 GBP to £676 GBP

B+
Cheapest Retailer
-
£481 GBP
B
Retailer 2
-
£565 GBP
View
B
Retailer 3
-
£676 GBP
View
Most Expensive
B
Zales
518777528 · Nov 4
£676 GBP
$910 USD
View
3 more retailers have this diamond
Prices start from £481 GBPSave up to £195 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.

B+
1.21ct Cushion
£481 GBP