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Round|Natural|GIA

1.21ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 7446751391

Certificate GIA 7446751391

Diamond specifications and retailer prices

From £1,141 GBP
As of November 6, 2026
Save £847 GBP (43%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,988 GBP at Yorxs · As of November 5, 2026
View at Yorxs

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7446751391. Listed at 4 retailers as of November 5, 2026, with prices from £1,141 to £1,988, a £847 spread on the same certified stone. Yorxs lists it at £1,988. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7446751391
Dimensions6.81 × 6.76 × 4.28 mm
L/W Ratio1.01
Top View
6.81 mm6.76 mm1.21 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7446751391
Side View
Table 57.0%Crown 36.5°Girdle: NUL-NULPavilion 41°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,916 GBP|Low: £1,028 GBP|High: £1,998 GBP|Avg: £1,385 GBP|+26.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Yorxs
November 6, 2026
Retailer 6£1,028 GBP
Retailer 7£1,055 GBP
Retailer 2£1,141 GBP
Retailer 5£1,206 GBP
Retailer 4£1,303 GBP
Retailer 3£1,490 GBP
Retailer 1£1,916 GBP
Yorxs£1,988 GBP

12 data points across 8 retailers

4 retailers£1,141 GBP to £1,988 GBP

A
Cheapest Retailer
-
£1,141 GBP
B+
Retailer 2
-
£1,490 GBP
View
B+
Retailer 3
-
£1,916 GBP
View
Most Expensive
B
Yorxs
GS2610220 · Nov 5
£1,988 GBP
€2,548 EUR
View
3 more retailers have this diamond
Prices start from £1,141 GBPSave up to £847 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.

A
1.21ct Round
£1,141 GBP