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Princess|Natural|GIA

1.78ct L SI1 Princess Natural Diamond

EX • L/SI1 • GIA 6552256549

Certificate GIA 6552256549

Diamond specifications and retailer prices

From £1,716 GBP
As of November 4, 2026
Save £1,156 GBP (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,872 GBP at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

About this 1.78ct natural princess diamond

This 1.78ct natural princess sits in the one-and-a-half to two carat band, graded L 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 6552256549. Listed at 6 retailers as of November 4, 2026, with prices from £1,716 to £2,872, a £1,156 spread on the same certified stone. Wholesale Diamonds Direct lists it at £2,872. 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

1.78
Carat
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.08°
Pavilion angle37.91°
OriginNatural
Grading LabGIA
CertificateGIA 6552256549
Dimensions6.48 × 6.46 × 4.73 mm
L/W Ratio1.00
Top View
6.48 mm6.46 mm1.78 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552256549
Side View
Table 72.0%Crown 31.08°Girdle: ThickPavilion 37.91°Culet: NoneDepth 73.3%

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: £1,834 GBP|Low: £1,238 GBP|High: £2,968 GBP|Avg: £2,080 GBP|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
November 6, 2026
Retailer 7£1,238 GBP
Retailer 4£1,716 GBP
Retailer 1£1,834 GBP
Retailer 6£1,918 GBP
Retailer 2£2,121 GBP
Retailer 5£2,421 GBP
Retailer 3£2,428 GBP
Wholesale Diamonds Direct£2,872 GBP

40 data points across 8 retailers

6 retailers£1,716 GBP to £2,872 GBP

A
Cheapest Retailer
-
£1,716 GBP
A
Retailer 2
-
£1,834 GBP
View
A
Retailer 3
-
£1,918 GBP
View
B+
Retailer 4
-
£2,121 GBP
View
B+
Retailer 5
-
£2,428 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
600306309 · Nov 4
£2,872 GBP
$3,866 USD
View
5 more retailers have this diamond
Prices start from £1,716 GBPSave up to £1,156 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
1.78ct Princess
£1,716 GBP