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Radiant|Natural|GIA

1.21ct K VS2 Radiant Natural Diamond

EX • K/VS2 • GIA 5151437515

Certificate GIA 5151437515

Diamond specifications and retailer prices

From £1,860 GBP
As of November 6, 2026
Save £138 GBP (7%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,619 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded K colour (faint-tinted) and VS2 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5151437515. Listed at 4 retailers as of November 6, 2026, with a relatively tight 7% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
K
Colour
VS2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5151437515
Dimensions5.64 × 5.50 × 4.42 mm
L/W Ratio1.03
Top View
5.64 mm5.50 mm1.21 ctK / VS2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5151437515
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 80.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £2,619 GBP|Low: £1,860 GBP|High: £2,744 GBP|Avg: £2,095 GBP|-4.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
October 18, 2026
Retailer 2£1,860 GBP
Retailer 3£1,869 GBP
Retailer 4£1,999 GBP
Rare Carat£2,619 GBP

4 data points across 4 retailers

4 retailers£1,860 GBP to £1,999 GBP

B+
Cheapest Retailer
-
£1,860 GBP
B+
Retailer 2
-
£1,869 GBP
View
B+
Retailer 3
-
£1,999 GBP
View
Most Expensive
Rare Carat
G12111 · Oct 28
£2,619 GBP
$3,505 USD
View
Price last confirmed 9 days ago
3 more retailers have this diamond
Prices start from £1,860 GBPSave up to £138 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
£1,860 GBP