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Round|Natural|GIA

1.21ct K SI2 Round Natural Diamond

VG • K/SI2 • GIA 2416372970

Certificate GIA 2416372970

Diamond specifications and retailer prices

From £1,281 GBP
As of November 6, 2026
Save £2,300 GBP (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,581 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 very-good cut grade and certified by GIA 2416372970. Listed at 12 retailers as of November 5, 2026, with prices from £1,281 to £3,581, a £2,300 spread on the same certified stone. NZ Jewellers lists it at £3,581. 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
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 2416372970
Dimensions6.65 × 6.59 × 4.27 mm
L/W Ratio1.01
Top View
6.65 mm6.59 mm1.21 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2416372970
Side View
Table 56.0%Crown 38.5°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 64.5%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £3,581 GBP|Low: £1,272 GBP|High: £3,761 GBP|Avg: £1,952 GBP|-4.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8£1,281 GBP
Retailer 5£1,356 GBP
Retailer 10£1,408 GBP
Retailer 3£1,510 GBP
Retailer 9£1,552 GBP
Retailer 11£1,552 GBP
Retailer 4£1,623 GBP
Retailer 12£1,791 GBP
Retailer 2£1,851 GBP
Retailer 6£2,109 GBP
Retailer 7£3,001 GBP
NZ Jewellers£3,581 GBP

43 data points across 12 retailers

12 retailers£1,281 GBP to £3,581 GBP

A
Cheapest Retailer
-
£1,281 GBP
A
Retailer 2
-
£1,356 GBP
View
B+
Retailer 3
-
£1,408 GBP
View
B+
Retailer 4
-
£1,510 GBP
View
Retailer 5
-
£1,552 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£1,552 GBP
View
B+
Retailer 7
-
£1,623 GBP
View
B+
Retailer 8
-
£1,791 GBP
View
B+
Retailer 9
-
£1,851 GBP
View
B
Retailer 10
-
£2,109 GBP
View
B
Retailer 11
-
£3,001 GBP
View
Most Expensive
C
NZ Jewellers
6b636c42-015b-4404-a191-93b61f1442d9 · Nov 5
£3,581 GBP
$4,793 USD
View
11 more retailers have this diamond
Prices start from £1,281 GBPSave up to £2,300 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
£1,281 GBP