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Cushion|Natural|GIA

5.03ct D SI1 Cushion Natural Diamond

ID • D/SI1 • GIA 6555553788

Certificate GIA 6555553788

Diamond specifications and retailer prices

From £46,780 GBP
$62,680 USD
As of November 1, 2026
Save £38,949 GBP (45%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £85,729 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 5.03ct natural cushion diamond

This 5.03ct natural cushion sits in the over five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555553788. Listed at 7 retailers as of November 1, 2026, with prices from £46,780 to £85,729, a £38,949 spread on the same certified stone. MOH London lists it at £85,729. 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

5.03
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceVery Strong
OriginNatural
Grading LabGIA
CertificateGIA 6555553788
Dimensions10.23 × 9.29 × 6.60 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal
Top View
10.23 mm9.29 mm5.03 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceVery Strong
CertificateGIA 6555553788
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 71.1%

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 1
Current: £85,729 GBP|Low: £46,780 GBP|High: £86,188 GBP|Avg: £60,387 GBP|+0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 2£46,780 GBP
Retailer 6£49,138 GBP
Retailer 7£52,243 GBP
Retailer 5£54,893 GBP
Retailer 3£57,061 GBP
Retailer 8£65,054 GBP
Retailer 4£66,604 GBP
MOH London£85,729 GBP

22 data points across 8 retailers

7 retailers£46,780 GBP to £85,729 GBP

A
Cheapest Retailer
-
£46,780 GBP
$62,680 USD
A
Retailer 2
-
£49,138 GBP
$65,840 USD
View
A
Retailer 3
-
£52,243 GBP
$70,000 USD
View
A
Retailer 4
-
£54,893 GBP
$73,550 USD
View
A
Retailer 5
-
£57,061 GBP
View
A
Retailer 6
-
£66,604 GBP
€84,993 EUR
View
Most Expensive
B+
MOH London
3404658B5 · Nov 1
£85,729 GBP
View
6 more retailers have this diamond
Prices start from £46,780 GBPSave up to £38,949 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
5.03ct Cushion
£46,780 GBP