CaratHunter
Plans
Round|Natural|GIA

1.20ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7541878698

Certificate GIA 7541878698

Diamond specifications and retailer prices

From £1,377 GBP
As of November 6, 2026
Save £1,798 GBP (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,798 GBP at NZ Jewellers · As of September 26, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7541878698. Listed at 19 retailers as of November 4, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7541878698
Dimensions6.72 × 6.78 × 4.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Cloud, Indented Natural, Needle
Top View
6.72 mm6.78 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7541878698
Side View
Table 59.0%Crown 36°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.3%

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: £1,432 GBP|Low: £1,377 GBP|High: £3,221 GBP|Avg: £1,997 GBP|-3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9£1,377 GBP
Retailer 1£1,432 GBP
Retailer 5£1,608 GBP
Retailer 2£1,711 GBP
Retailer 10£1,722 GBP
Retailer 7£1,910 GBP
Retailer 3£1,917 GBP
Retailer 4£2,217 GBP
Retailer 6£2,253 GBP
Retailer 8£3,174 GBP

32 data points across 10 retailers

19 retailers£1,377 GBP to £3,174 GBP

A
Cheapest Retailer
-
£1,377 GBP
A
Retailer 2
-
£1,432 GBP
View
A
Retailer 3
-
£1,608 GBP
View
B+
Retailer 4
-
£1,711 GBP
View
B+
Retailer 5
-
£1,722 GBP
View
B+
Retailer 6
-
£1,722 GBP
View
Retailer 7
-
£1,817 GBP
View
Price last confirmed 39 days ago
Retailer 8
-
£1,817 GBP
View
Price last confirmed 25 days ago
Retailer 9
-
£1,817 GBP
View
Price last confirmed 29 days ago
B+
Retailer 10
-
£1,868 GBP
View
Retailer 11
-
£1,901 GBP
View
Price last confirmed 38 days ago
B+
Retailer 12
-
£1,910 GBP
View
B+
Retailer 13
-
£1,917 GBP
View
B+
Retailer 14
-
£1,921 GBP
View
Retailer 15
-
£2,096 GBP
View
Price last confirmed 38 days ago
B+
Retailer 16
-
£2,217 GBP
View
B+
Retailer 17
-
£2,253 GBP
View
B
Retailer 18
-
£3,174 GBP
View
Most Expensive
NZ Jewellers
d320849b-3ab1-40f7-8648-c88507991006 · Sep 26
£3,798 GBP
$5,084 USD
View
Price last confirmed 40 days ago
18 more retailers have this diamond
Prices start from £1,377 GBPSave up to £1,798 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
£1,377 GBP