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Princess|Natural|GIA

1.55ct I SI1 Princess Natural Diamond

GD • I/SI1 • GIA 6421251715

Certificate GIA 6421251715

Diamond specifications and retailer prices

From £3,277 GBP
₹418,111 INR
As of October 31, 2026
Save £5,229 GBP (61%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £8,505 GBP at Adiamor · As of November 1, 2026
View at Adiamor

About this 1.55ct natural princess diamond

This 1.55ct natural princess sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6421251715. Listed at 21 retailers as of October 31, 2026, with prices from £3,277 to £8,505, a £5,229 spread on the same certified stone. Adiamor lists it at £8,505. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6421251715
Dimensions6.14 × 6.10 × 4.54 mm
L/W Ratio1.01
Top View
6.14 mm6.10 mm1.55 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6421251715
Side View
Table 74.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 74.5%

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: Oct 31
Current: £4,409 GBP|Low: £3,132 GBP|High: £7,634 GBP|Avg: £4,507 GBP|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 6£3,277 GBP
Retailer 7£3,286 GBP
Retailer 9£3,563 GBP
Retailer 4£3,844 GBP
Retailer 11£3,948 GBP
Retailer 2£4,172 GBP
Retailer 1£4,409 GBP
Retailer 3£4,469 GBP
Retailer 8£4,939 GBP
Retailer 5£5,554 GBP
Retailer 10£6,695 GBP

34 data points across 11 retailers

21 retailers£3,277 GBP to £8,505 GBP

A
Cheapest Retailer
-
£3,277 GBP
₹418,111 INR
B+
Retailer 2
-
£3,286 GBP
HK$34,400 HKD
View
B+
Retailer 3
-
£3,563 GBP
A$7,344 AUD
View
B+
Retailer 4
-
£3,844 GBP
$5,151 USD
View
B+
Retailer 5
-
£3,859 GBP
$5,171 USD
View
Retailer 6
-
£3,948 GBP
$5,290 USD
View
Price last confirmed 14 days ago
B
Retailer 7
-
£4,172 GBP
$5,590 USD
View
Final sale: no returns
Retailer 8
-
£4,175 GBP
SGD 7,560 SGD
View
Price last confirmed 18 days ago
B
Retailer 9
-
£4,213 GBP
$5,645 USD
View
B
Retailer 10
-
£4,409 GBP
View
Retailer 11
-
£4,469 GBP
A$9,211 AUD
View
Price last confirmed 23 days ago
B
Retailer 12
-
£4,520 GBP
$6,056 USD
View
B
Retailer 13
-
£4,520 GBP
$6,056 USD
View
B
Retailer 14
-
£4,520 GBP
$6,056 USD
View
B
Retailer 15
-
£4,637 GBP
$6,213 USD
View
B
Retailer 16
-
£4,939 GBP
€6,303 EUR
View
B
Retailer 17
-
£5,215 GBP
$6,988 USD
View
B
Retailer 18
-
£5,554 GBP
ZAR 120,213 ZAR
View
B
Retailer 19
-
£6,695 GBP
View
C
Retailer 20
-
£7,560 GBP
$10,130 USD
View
Most Expensive
C
Adiamor
D-64715985 · Nov 1
£8,505 GBP
$11,396 USD
View
20 more retailers have this diamond
Prices start from £3,277 GBPSave up to £5,229 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
1.55ct Princess
£3,277 GBP