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Princess|Natural|GIA

1.20ct D SI1 Princess Natural Diamond

ID • D/SI1 • GIA 3545806304

Certificate GIA 3545806304

Diamond specifications and retailer prices

From £1,913 GBP
As of November 6, 2026
Save £2,551 GBP (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,792 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural princess diamond

This 1.2ct natural princess sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545806304. Listed at 22 retailers as of November 2, 2026, with a 133% 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3545806304
Dimensions6.12 × 6.06 × 3.84 mm
L/W Ratio1.01
Top View
6.12 mm6.06 mm1.20 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3545806304
Side View
Table 72.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.4%

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 6
Current: £4,792 GBP|Low: £1,913 GBP|High: £4,811 GBP|Avg: £2,969 GBP|+2.2%
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
Retailer 15
November 6, 2026
Retailer 9£1,913 GBP
Retailer 8£1,990 GBP
Retailer 3£2,279 GBP
Retailer 14£2,312 GBP
Retailer 15£2,452 GBP
Retailer 6£2,514 GBP
Retailer 13£2,592 GBP
Retailer 10£2,612 GBP
Retailer 11£2,653 GBP
Retailer 2£2,675 GBP
Retailer 7£2,875 GBP
Retailer 12£2,914 GBP
Retailer 5£3,299 GBP
Retailer 4£4,464 GBP
Queensmith£4,792 GBP

29 data points across 15 retailers

22 retailers£1,913 GBP to £4,464 GBP

A
Cheapest Retailer
-
£1,913 GBP
A
Retailer 2
-
£1,990 GBP
View
B+
Retailer 3
-
£2,279 GBP
View
B+
Retailer 4
-
£2,312 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,452 GBP
View
B+
Retailer 6
-
£2,511 GBP
View
B+
Retailer 7
-
£2,514 GBP
View
B+
Retailer 8
-
£2,592 GBP
View
B+
Retailer 9
-
£2,612 GBP
View
B+
Retailer 10
-
£2,653 GBP
View
B+
Retailer 11
-
£2,675 GBP
View
Retailer 12
-
£2,684 GBP
View
Price last confirmed 19 days ago
Retailer 13
-
£2,684 GBP
View
Price last confirmed 21 days ago
B+
Retailer 14
-
£2,718 GBP
View
Retailer 15
-
£2,787 GBP
View
Price last confirmed 22 days ago
Retailer 16
-
£2,875 GBP
View
Price last confirmed 29 days ago
B+
Retailer 17
-
£2,914 GBP
View
Retailer 18
-
£3,097 GBP
View
Price last confirmed 18 days ago
B
Retailer 19
-
£3,299 GBP
View
B
Retailer 20
-
£4,464 GBP
View
Retailer 21
-
£4,676 GBP
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
3545806304 · Oct 28
£4,792 GBP
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from £1,913 GBPSave up to £2,551 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 Princess
£1,913 GBP