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Round|Natural|GIA

1.20ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6565464396

Certificate GIA 6565464396

Diamond specifications and retailer prices

From £1,388 GBP
As of November 6, 2026
Save £2,473 GBP (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,861 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct 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 6565464396. Listed at 18 retailers as of November 5, 2026, with prices from £1,388 to £3,861, a £2,473 spread on the same certified stone. NZ Jewellers lists it at £3,861. 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

1.20
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6565464396
Dimensions6.75 × 6.81 × 4.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle, Indented Natural, Natural
Top View
6.75 mm6.81 mm1.20 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565464396
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.9%

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: £3,861 GBP|Low: £1,388 GBP|High: £3,861 GBP|Avg: £2,191 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 14£1,388 GBP
Retailer 2£1,439 GBP
Retailer 11£1,618 GBP
Retailer 13£1,675 GBP
Retailer 7£1,791 GBP
Retailer 3£1,846 GBP
Retailer 5£1,846 GBP
Retailer 8£1,930 GBP
Retailer 4£1,932 GBP
Retailer 9£1,942 GBP
Retailer 6£2,131 GBP
Retailer 10£2,288 GBP
Retailer 12£3,227 GBP
NZ Jewellers£3,861 GBP

25 data points across 14 retailers

18 retailers£1,388 GBP to £3,861 GBP

A
Cheapest Retailer
-
£1,388 GBP
A
Retailer 2
-
£1,439 GBP
View
B+
Retailer 3
-
£1,618 GBP
View
B+
Retailer 4
-
£1,675 GBP
View
B+
Retailer 5
-
£1,719 GBP
View
B+
Retailer 6
-
£1,735 GBP
View
B+
Retailer 7
-
£1,791 GBP
View
Retailer 8
-
£1,846 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£1,846 GBP
View
B+
Retailer 10
-
£1,895 GBP
View
B+
Retailer 11
-
£1,930 GBP
View
B+
Retailer 12
-
£1,932 GBP
View
B+
Retailer 13
-
£1,942 GBP
View
B+
Retailer 14
-
£1,950 GBP
View
B
Retailer 15
-
£2,131 GBP
View
B+
Retailer 16
-
£2,288 GBP
View
B
Retailer 17
-
£3,227 GBP
View
Most Expensive
B
NZ Jewellers
78abafac-26dc-4372-815d-4670b952bc0b · Nov 5
£3,861 GBP
$5,196 USD
View
17 more retailers have this diamond
Prices start from £1,388 GBPSave up to £2,473 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
1.20ct Round
£1,388 GBP