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Princess|Natural|GIA

1.51ct H SI1 Princess Natural Diamond

EX • H/SI1 • GIA 1568481656

Certificate GIA 1568481656

Diamond specifications and retailer prices

From £2,656 GBP
$3,564 USD
As of October 31, 2026
Save £2,255 GBP (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,911 GBP at Wholesale Diamonds Direct · As of October 27, 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 1568481656. Listed at 15 retailers as of October 27, 2026, with prices from £2,656 to £4,911, a £2,255 spread on the same certified stone. Wholesale Diamonds Direct lists it at £4,911. 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
FluorescenceFaint
Crown angle22.8°
Pavilion angle39.74°
OriginNatural
Grading LabGIA
CertificateGIA 1568481656
Dimensions6.41 × 6.30 × 4.53 mm
L/W Ratio1.02
Culet sizeNone
Top View
6.41 mm6.30 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1568481656
Side View
Table 72.0%Crown 22.8°Girdle: MED-STKPavilion 39.74°Culet: NDepth 71.8%

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: £3,419 GBP|Low: £2,656 GBP|High: £4,911 GBP|Avg: £3,443 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
Retailer 12
Retailer 13
Wholesale Diamonds Direct
November 2, 2026
Retailer 4£2,656 GBP
Retailer 13£2,698 GBP
Retailer 3£2,838 GBP
Retailer 9£2,869 GBP
Retailer 8£2,879 GBP
Retailer 2£2,899 GBP
Retailer 6£3,095 GBP
Retailer 11£3,369 GBP
Retailer 5£3,400 GBP
Retailer 1£3,419 GBP
Retailer 7£4,145 GBP
Retailer 12£4,479 GBP
Retailer 10£4,760 GBP
Wholesale Diamonds Direct£4,911 GBP

26 data points across 14 retailers

15 retailers£2,656 GBP to £4,911 GBP

A
Cheapest Retailer
-
£2,656 GBP
$3,564 USD
A
Retailer 2
-
£2,698 GBP
$3,620 USD
View
A
Retailer 3
-
£2,705 GBP
SGD 4,906 SGD
View
A
Retailer 4
-
£2,838 GBP
$3,808 USD
View
A
Retailer 5
-
£2,869 GBP
$3,850 USD
View
A
Retailer 6
-
£2,879 GBP
$3,864 USD
View
A
Retailer 7
-
£2,899 GBP
SGD 5,258 SGD
View
A
Retailer 8
-
£3,095 GBP
View
B+
Retailer 9
-
£3,369 GBP
$4,521 USD
View
B+
Retailer 10
-
£3,400 GBP
$4,562 USD
View
B+
Retailer 11
-
£3,419 GBP
€4,370 EUR
View
B+
Retailer 12
-
£4,145 GBP
$5,562 USD
View
B
Retailer 13
-
£4,479 GBP
$6,010 USD
View
B+
Retailer 14
-
£4,760 GBP
$6,387 USD
View
Most Expensive
B
Wholesale Diamonds Direct
515662370 · Oct 27
£4,911 GBP
$6,591 USD
View
14 more retailers have this diamond
Prices start from £2,656 GBPSave up to £2,255 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
£2,656 GBP