CaratHunter
Plans
Radiant|Natural|GIA

1.21ct D SI2 Radiant Natural Diamond

VG • D/SI2 • GIA 6395092085

Certificate GIA 6395092085

Diamond specifications and retailer prices

From £2,436 GBP
As of November 6, 2026
Save £2,677 GBP (52%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £5,112 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6395092085. Listed at 7 retailers as of November 4, 2026, with prices from £2,436 to £5,112, a £2,677 spread on the same certified stone. MOH London lists it at £5,112. 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6395092085
Dimensions5.95 × 5.68 × 4.09 mm
L/W Ratio1.05
Top View
5.95 mm5.68 mm1.21 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6395092085
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 72.0%

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 6
Current: £5,112 GBP|Low: £2,328 GBP|High: £5,188 GBP|Avg: £3,461 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 5£2,436 GBP
Retailer 4£2,561 GBP
Retailer 2£3,260 GBP
Retailer 3£3,621 GBP
Retailer 6£3,641 GBP
MOH London£5,112 GBP

40 data points across 6 retailers

7 retailers£2,436 GBP to £5,112 GBP

B+
Cheapest Retailer
-
£2,436 GBP
B+
Retailer 2
-
£2,474 GBP
View
B+
Retailer 3
-
£2,561 GBP
View
Final sale: no returns
B+
Retailer 4
-
£3,260 GBP
View
B
Retailer 5
-
£3,621 GBP
View
Retailer 6
-
£3,641 GBP
View
Price last confirmed 15 days ago
Most Expensive
B
MOH London
84C01788B · Nov 4
£5,112 GBP
View
6 more retailers have this diamond
Prices start from £2,436 GBPSave up to £2,677 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 Radiant
£2,436 GBP