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Princess|Natural|GIA

1.50ct K SI1 Princess Natural Diamond

EX • K/SI1 • GIA 1457313135

Certificate GIA 1457313135

Diamond specifications and retailer prices

From £1,579 GBP
As of November 4, 2026
Save £791 GBP (33%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,370 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.5ct natural princess diamond

This 1.5ct natural princess sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1457313135. Listed at 10 retailers as of November 4, 2026, with prices from £1,579 to £2,370, a £791 spread on the same certified stone. 77 Diamonds lists it at £2,370. 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

1.50
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1457313135
Dimensions6.46 × 6.34 × 4.69 mm
L/W Ratio1.02
Girdle conditionPolished
Culet sizeNone
Cert comments
Clouds are not shown. Pinpoints are not shown.
Key to symbols
Feather, Crystal, Indented Natural, Needle
Top View
6.46 mm6.34 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1457313135
Side View
Table 72.0%CrownGirdle: MED-POLPavilionCulet: NoneDepth 74.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £2,370 GBP|Low: £1,579 GBP|High: £2,411 GBP|Avg: £1,869 GBP|+28.5%
77 Diamonds
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
November 6, 2026
Retailer 7£1,579 GBP
Retailer 11£1,597 GBP
Retailer 9£1,623 GBP
Retailer 12£1,630 GBP
Retailer 13£1,701 GBP
Retailer 5£1,727 GBP
Retailer 14£1,734 GBP
Retailer 4£1,795 GBP
Retailer 8£1,956 GBP
Retailer 10£1,966 GBP
Retailer 6£2,057 GBP
Retailer 3£2,071 GBP
Retailer 2£2,322 GBP
77 Diamonds£2,370 GBP

37 data points across 14 retailers

10 retailers£1,579 GBP to £2,370 GBP

A
Cheapest Retailer
-
£1,579 GBP
A
Retailer 2
-
£1,597 GBP
View
A
Retailer 3
-
£1,623 GBP
View
A
Retailer 4
-
£1,630 GBP
View
A
Retailer 5
-
£1,701 GBP
View
B+
Retailer 6
-
£1,956 GBP
View
B+
Retailer 7
-
£1,966 GBP
View
Retailer 8
-
£2,071 GBP
View
Price last confirmed 61 days ago
B+
Retailer 9
-
£2,322 GBP
View
Most Expensive
B+
77 Diamonds
PRIMBSMEMMERR · Nov 6
£2,370 GBP
View
9 more retailers have this diamond
Prices start from £1,579 GBPSave up to £791 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
1.50ct Princess
£1,579 GBP