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Marquise|Natural|GIA

1.03ct I IF Marquise Natural Diamond

EX • I/IF • GIA 6555686800

Certificate GIA 6555686800

Diamond specifications and retailer prices

From £2,392 GBP
As of November 6, 2026
Save £690 GBP (22%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,211 GBP at Blue Nile · As of October 24, 2026
View at Blue Nile

About this 1.03ct natural marquise diamond

This 1.03ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555686800. Listed at 6 retailers as of November 6, 2026, with a 29% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
I
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6555686800
Dimensions10.68 × 5.21 × 3.10 mm
L/W Ratio2.05
Culet sizeNone
Top View
10.68 mm5.21 mm1.03 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6555686800
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.5%

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 6
Current: £3,211 GBP|Low: £2,358 GBP|High: £3,294 GBP|Avg: £2,803 GBP|-2.5%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2£2,392 GBP
Retailer 4£2,697 GBP
Retailer 5£2,768 GBP
Retailer 6£2,847 GBP
Retailer 3£2,887 GBP
Blue Nile£3,211 GBP

45 data points across 6 retailers

6 retailers£2,392 GBP to £3,083 GBP

A
Cheapest Retailer
-
£2,392 GBP
Retailer 2
-
£2,697 GBP
View
Price last confirmed 12 days ago
Retailer 3
-
£2,847 GBP
View
Price last confirmed 11 days ago
Retailer 4
-
£2,887 GBP
View
Price last confirmed 11 days ago
B+
Retailer 5
-
£3,083 GBP
View
Most Expensive
Blue Nile
29608027 · Oct 24
£3,211 GBP
$4,298 USD
View
Price last confirmed 13 days ago
5 more retailers have this diamond
Prices start from £2,392 GBPSave up to £690 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
1.03ct Marquise
£2,392 GBP