CaratHunter
Plans
Round|Natural|GIA

1.20ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 5563279764

Certificate GIA 5563279764

Diamond specifications and retailer prices

From £1,788 GBP
As of November 4, 2026
Save £2,353 GBP (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,525 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5563279764. Listed at 20 retailers as of November 4, 2026, with a 132% 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5563279764
Dimensions6.76 × 6.80 × 4.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Key to symbols
Crystal, Feather, Cavity, Indented Natural, Needle
Top View
6.76 mm6.80 mm1.20 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5563279764
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.8%

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 4
Current: £4,525 GBP|Low: £1,788 GBP|High: £4,543 GBP|Avg: £2,787 GBP|+2.8%
Queensmith
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 13£1,788 GBP
Retailer 10£1,868 GBP
Retailer 8£2,084 GBP
Retailer 11£2,245 GBP
Retailer 4£2,377 GBP
Retailer 14£2,377 GBP
Retailer 7£2,444 GBP
Retailer 3£2,468 GBP
Retailer 2£2,491 GBP
Retailer 5£2,742 GBP
Retailer 9£2,760 GBP
Retailer 12£3,964 GBP
Retailer 6£4,141 GBP
Queensmith£4,525 GBP

26 data points across 14 retailers

20 retailers£1,788 GBP to £4,141 GBP

A
Cheapest Retailer
-
£1,788 GBP
A
Retailer 2
-
£1,868 GBP
View
A
Retailer 3
-
£2,084 GBP
View
A
Retailer 4
-
£2,158 GBP
View
A
Retailer 5
-
£2,174 GBP
View
A
Retailer 6
-
£2,193 GBP
View
Final sale: no returns
A
Retailer 7
-
£2,198 GBP
View
A
Retailer 8
-
£2,245 GBP
View
A
Retailer 9
-
£2,377 GBP
View
Retailer 10
-
£2,377 GBP
View
Price last confirmed 8 days ago
A
Retailer 11
-
£2,400 GBP
View
A
Retailer 12
-
£2,444 GBP
View
A
Retailer 13
-
£2,468 GBP
View
A
Retailer 14
-
£2,483 GBP
View
A
Retailer 15
-
£2,491 GBP
View
B+
Retailer 16
-
£2,742 GBP
View
B+
Retailer 17
-
£2,760 GBP
View
B+
Retailer 18
-
£3,964 GBP
View
B
Retailer 19
-
£4,141 GBP
View
Most Expensive
Queensmith
5563279764 · Oct 28
£4,525 GBP
View
Price last confirmed 8 days ago
19 more retailers have this diamond
Prices start from £1,788 GBPSave up to £2,353 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
£1,788 GBP