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Round|Natural|GIA

1.20ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 1533797921

Certificate GIA 1533797921

Diamond specifications and retailer prices

From £1,855 GBP
As of November 4, 2026
Save £2,216 GBP (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,652 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 1533797921. Listed at 21 retailers as of November 4, 2026, with a 119% 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 angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1533797921
Dimensions6.79 × 6.74 × 4.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Cloud, Needle
Top View
6.79 mm6.74 mm1.20 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1533797921
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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: £4,652 GBP|Low: £1,855 GBP|High: £4,652 GBP|Avg: £2,782 GBP|+2.7%
Queensmith
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 3£1,855 GBP
Retailer 7£1,935 GBP
Retailer 6£2,141 GBP
Retailer 8£2,245 GBP
Retailer 12£2,252 GBP
Retailer 4£2,300 GBP
Retailer 10£2,511 GBP
Retailer 2£2,547 GBP
Retailer 5£2,584 GBP
Retailer 9£2,838 GBP
Retailer 11£4,070 GBP
Queensmith£4,652 GBP

27 data points across 12 retailers

21 retailers£1,855 GBP to £4,070 GBP

A
Cheapest Retailer
-
£1,855 GBP
A
Retailer 2
-
£1,935 GBP
View
A
Retailer 3
-
£2,141 GBP
View
A
Retailer 4
-
£2,245 GBP
View
A
Retailer 5
-
£2,252 GBP
View
Final sale: no returns
A
Retailer 6
-
£2,300 GBP
View
A
Retailer 7
-
£2,364 GBP
View
A
Retailer 8
-
£2,511 GBP
View
Retailer 9
-
£2,528 GBP
View
Price last confirmed 60 days ago
Retailer 10
-
£2,528 GBP
View
Price last confirmed 28 days ago
Retailer 11
-
£2,528 GBP
View
Price last confirmed 25 days ago
A
Retailer 12
-
£2,547 GBP
View
A
Retailer 13
-
£2,584 GBP
View
Retailer 14
-
£2,626 GBP
View
Price last confirmed 38 days ago
B+
Retailer 15
-
£2,838 GBP
View
Retailer 16
-
£2,918 GBP
View
Price last confirmed 60 days ago
Retailer 17
-
£2,918 GBP
View
Price last confirmed 28 days ago
B+
Retailer 18
-
£4,070 GBP
View
Retailer 19
-
£4,405 GBP
View
Price last confirmed 66 days ago
Retailer 20
-
£4,405 GBP
View
Price last confirmed 39 days ago
Most Expensive
Queensmith
1533797921 · Oct 28
£4,652 GBP
View
Price last confirmed 8 days ago
20 more retailers have this diamond
Prices start from £1,855 GBPSave up to £2,216 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
£1,855 GBP