CaratHunter
Plans
Princess|Natural|GIA

1.51ct D SI1 Princess Natural Diamond

EX • D/SI1 • GIA 1555500862

Certificate GIA 1555500862

Diamond specifications and retailer prices

From £4,270 GBP
$5,721 USD
As of November 1, 2026
Save £4,025 GBP (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £8,295 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two 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 1555500862. Listed at 12 retailers as of November 1, 2026, with prices from £4,270 to £8,295, a £4,025 spread on the same certified stone. MOH London lists it at £8,295. 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

1.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555500862
Dimensions6.30 × 6.28 × 4.58 mm
L/W Ratio1.00
Key to symbols
Crystal, Needle
Top View
6.30 mm6.28 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555500862
Side View
Table 69.0%CrownGirdle: ThickPavilionCulet: NoneDepth 72.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £8,295 GBP|Low: £4,270 GBP|High: £9,582 GBP|Avg: £6,915 GBP|-12.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9£4,270 GBP
Retailer 11£4,703 GBP
Retailer 7£4,977 GBP
Retailer 8£5,515 GBP
Retailer 5£5,613 GBP
Retailer 10£5,896 GBP
Retailer 12£5,896 GBP
Retailer 3£6,098 GBP
Retailer 4£6,400 GBP
Retailer 2£6,502 GBP
Retailer 6£7,312 GBP
MOH London£8,295 GBP

44 data points across 12 retailers

12 retailers£4,270 GBP to £8,295 GBP

B+
Cheapest Retailer
-
£4,270 GBP
$5,721 USD
B+
Retailer 2
-
£4,703 GBP
$6,301 USD
View
B+
Retailer 3
-
£4,977 GBP
$6,669 USD
View
B+
Retailer 4
-
£5,515 GBP
$7,389 USD
View
B+
Retailer 5
-
£5,613 GBP
View
B+
Retailer 6
-
£5,896 GBP
$7,900 USD
View
B+
Retailer 7
-
£5,896 GBP
$7,900 USD
View
B+
Retailer 8
-
£6,098 GBP
$8,170 USD
View
Retailer 9
-
£6,400 GBP
A$13,193 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£6,502 GBP
€8,297 EUR
View
B
Retailer 11
-
£7,312 GBP
ZAR 158,273 ZAR
View
Most Expensive
B
MOH London
27FACA8C5 · Nov 1
£8,295 GBP
View
11 more retailers have this diamond
Prices start from £4,270 GBPSave up to £4,025 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.

B+
1.51ct Princess
£4,270 GBP