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Princess|Natural|GIA

1.51ct H SI2 Princess Natural Diamond

GD • H/SI2 • GIA 7428518923

Certificate GIA 7428518923

Diamond specifications and retailer prices

From £2,680 GBP
As of November 6, 2026
Save £5,024 GBP (65%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £7,703 GBP at Adiamor · As of November 5, 2026
View at Adiamor

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7428518923. Listed at 19 retailers as of November 5, 2026, with prices from £2,680 to £7,703, a £5,024 spread on the same certified stone. Adiamor lists it at £7,703. 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

1.51
Carat
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7428518923
Dimensions6.08 × 6.03 × 4.52 mm
L/W Ratio1.01
Top View
6.08 mm6.03 mm1.51 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7428518923
Side View
Table 69.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 74.9%

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: £2,680 GBP|Low: £2,680 GBP|High: £6,028 GBP|Avg: £3,690 GBP|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1£2,680 GBP
Retailer 8£2,706 GBP
Retailer 9£3,207 GBP
Retailer 10£3,262 GBP
Retailer 7£3,302 GBP
Retailer 3£3,443 GBP
Retailer 2£3,452 GBP
Retailer 5£3,683 GBP
Retailer 4£4,208 GBP
Retailer 6£5,940 GBP

35 data points across 10 retailers

19 retailers£2,680 GBP to £7,703 GBP

A
Cheapest Retailer
-
£2,680 GBP
A
Retailer 2
-
£2,706 GBP
View
B+
Retailer 3
-
£3,193 GBP
View
B+
Retailer 4
-
£3,207 GBP
View
B+
Retailer 5
-
£3,262 GBP
View
B+
Retailer 6
-
£3,302 GBP
View
B+
Retailer 7
-
£3,413 GBP
View
B+
Retailer 8
-
£3,443 GBP
View
B+
Retailer 9
-
£3,452 GBP
View
Final sale: no returns
B+
Retailer 10
-
£3,683 GBP
View
B+
Retailer 11
-
£3,740 GBP
View
Retailer 12
-
£3,740 GBP
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£3,740 GBP
View
B+
Retailer 14
-
£3,853 GBP
View
B
Retailer 15
-
£4,208 GBP
View
B
Retailer 16
-
£4,315 GBP
View
B
Retailer 17
-
£5,940 GBP
View
C
Retailer 18
-
£6,516 GBP
View
Most Expensive
C
Adiamor
D-64707933 · Nov 5
£7,703 GBP
$10,311 USD
View
18 more retailers have this diamond
Prices start from £2,680 GBPSave up to £5,024 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
1.51ct Princess
£2,680 GBP