CaratHunter
Plans
Cushion|Lab Grown|IGI

1.21ct G VS1 Cushion Lab Grown Diamond

VG • G/VS1 • IGI LG632450946

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG632450946

Diamond specifications and retailer prices

From £481 GBP
As of November 5, 2026
Save £493 GBP (51%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £973 GBP at Jared · As of November 4, 2026
View at Jared

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 LG632450946 or 632450946. Listed at 3 retailers as of November 4, 2026, with prices from £481 to £973, a £493 spread on the same certified stone. Jared lists it at £973. 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
Crown angle36.7°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG632450946
Dimensions7.83 × 5.33 × 3.56 mm
L/W Ratio1.47
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.83 mm5.33 mm1.21 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG632450946
Side View
Table 64.0%Crown 36.7°Girdle: STK-THKPavilion 34.6°Culet: NoneDepth 66.8%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: £973 GBP|Low: £481 GBP|High: £973 GBP|Avg: £756 GBP
Jared
Retailer 2
Retailer 3
September 26, 2026
Retailer 2£481 GBP
Retailer 3£676 GBP
Jared£973 GBP

2 data points across 3 retailers

3 retailers£481 GBP to £973 GBP

B+
Cheapest Retailer
-
£481 GBP
B
Retailer 2
-
£676 GBP
View
Most Expensive
C
Jared
155899554 · Nov 4
£973 GBP
$1,310 USD
View
2 more retailers have this diamond
Prices start from £481 GBPSave up to £493 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