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Princess|Natural|GIA

1.51ct H SI1 Princess Natural Diamond

EX • H/SI1 • GIA 3565156631

Certificate GIA 3565156631

Diamond specifications and retailer prices

From £2,536 GBP
$3,398 USD
As of October 31, 2026
Save £2,171 GBP (46%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,707 GBP at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3565156631. Listed at 16 retailers as of October 26, 2026, with prices from £2,536 to £4,707, a £2,171 spread on the same certified stone. Wholesale Diamonds Direct lists it at £4,707. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.13°
Pavilion angle37.98°
OriginNatural
Grading LabGIA
CertificateGIA 3565156631
Dimensions6.16 × 6.04 × 4.43 mm
L/W Ratio1.02
Culet sizeNone
Top View
6.16 mm6.04 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565156631
Side View
Table 70.0%Crown 30.13°Girdle: THK-VTKPavilion 37.98°Culet: NoneDepth 73.3%

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: £3,958 GBP|Low: £2,536 GBP|High: £4,933 GBP|Avg: £3,336 GBP|-3.9%
Retailer 1
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
Retailer 16
Wholesale Diamonds Direct
November 1, 2026
Retailer 12£2,536 GBP
Retailer 14£2,576 GBP
Retailer 2£2,583 GBP
Retailer 13£2,710 GBP
Retailer 9£2,746 GBP
Retailer 6£2,767 GBP
Retailer 8£2,838 GBP
Retailer 10£2,956 GBP
Retailer 15£3,164 GBP
Retailer 3£3,225 GBP
Retailer 4£3,261 GBP
Retailer 11£3,280 GBP
Retailer 7£3,693 GBP
Retailer 1£3,958 GBP
Retailer 16£4,276 GBP
Retailer 5£4,545 GBP
Wholesale Diamonds Direct£4,707 GBP

20 data points across 17 retailers

16 retailers£2,536 GBP to £4,707 GBP

A
Cheapest Retailer
-
£2,536 GBP
$3,398 USD
A
Retailer 2
-
£2,576 GBP
$3,452 USD
View
A
Retailer 3
-
£2,583 GBP
SGD 4,677 SGD
View
A
Retailer 4
-
£2,710 GBP
$3,631 USD
View
A
Retailer 5
-
£2,746 GBP
$3,680 USD
View
A
Retailer 6
-
£2,767 GBP
SGD 5,011 SGD
View
A
Retailer 7
-
£2,838 GBP
$3,803 USD
View
A
Retailer 8
-
£2,956 GBP
View
A
Retailer 9
-
£3,164 GBP
$4,240 USD
View
A
Retailer 10
-
£3,225 GBP
$4,321 USD
View
A
Retailer 11
-
£3,261 GBP
$4,370 USD
View
A
Retailer 12
-
£3,280 GBP
€4,185 EUR
View
B+
Retailer 13
-
£3,958 GBP
$5,303 USD
View
B+
Retailer 14
-
£4,276 GBP
$5,730 USD
View
B+
Retailer 15
-
£4,545 GBP
$6,090 USD
View
Most Expensive
B
Wholesale Diamonds Direct
427169053 · Oct 26
£4,707 GBP
$6,307 USD
View
15 more retailers have this diamond
Prices start from £2,536 GBPSave up to £2,171 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
£2,536 GBP