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Cushion|Natural|GIA

1.21ct G SI2 Cushion Natural Diamond

VG • G/SI2 • GIA 6183371945

Certificate GIA 6183371945

Diamond specifications and retailer prices

From £2,473 GBP
As of November 4, 2026
Save £1,294 GBP (34%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,766 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6183371945. Listed at 10 retailers as of November 4, 2026, with prices from £2,473 to £3,766, a £1,294 spread on the same certified stone. 77 Diamonds lists it at £3,766. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6183371945
Dimensions5.93 × 5.69 × 4.08 mm
L/W Ratio1.04
Top View
5.93 mm5.69 mm1.21 ctG / SI2
OriginNatural
CutVery Good
PolishGood
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6183371945
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 71.8%

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 4
Current: £3,766 GBP|Low: £2,473 GBP|High: £3,818 GBP|Avg: £3,101 GBP|+1.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2£2,473 GBP
Retailer 4£2,483 GBP
Retailer 3£3,069 GBP
Retailer 6£3,250 GBP
Retailer 7£3,250 GBP
Retailer 5£3,362 GBP
77 Diamonds£3,766 GBP

37 data points across 7 retailers

10 retailers£2,473 GBP to £3,766 GBP

B+
Cheapest Retailer
-
£2,473 GBP
B
Retailer 2
-
£2,483 GBP
View
B
Retailer 3
-
£2,506 GBP
View
B
Retailer 4
-
£2,549 GBP
View
B
Retailer 5
-
£2,725 GBP
View
B
Retailer 6
-
£3,069 GBP
View
B
Retailer 7
-
£3,250 GBP
View
B
Retailer 8
-
£3,250 GBP
View
B
Retailer 9
-
£3,362 GBP
View
Most Expensive
B
77 Diamonds
CUSZZPMUMSHU · Nov 6
£3,766 GBP
View
9 more retailers have this diamond
Prices start from £2,473 GBPSave up to £1,294 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
£2,473 GBP