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Marquise|Natural|GIA

1.20ct D I1 Marquise Natural Diamond

EX • D/I1 • GIA 2554200645

Certificate GIA 2554200645

Diamond specifications and retailer prices

From £2,603 GBP
$3,488 USD
As of November 1, 2026
Save £2,552 GBP (50%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £5,155 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and I1 clarity (included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554200645. Listed at 7 retailers as of October 30, 2026, with prices from £2,603 to £5,155, a £2,552 spread on the same certified stone. NZ Jewellers lists it at £5,155. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
I1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554200645
Dimensions10.45 × 5.35 × 3.43 mm
L/W Ratio1.95
Top View
10.45 mm5.35 mm1.20 ctD / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554200645
Side View
Table 55.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 64.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £5,155 GBP|Low: £2,603 GBP|High: £5,374 GBP|Avg: £3,441 GBP|-4.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7£2,603 GBP
Retailer 8£2,769 GBP
Retailer 3£2,958 GBP
Retailer 4£2,958 GBP
Retailer 6£2,958 GBP
Retailer 2£3,348 GBP
Retailer 5£3,414 GBP
Retailer 9£4,160 GBP
NZ Jewellers£5,155 GBP

24 data points across 9 retailers

7 retailers£2,603 GBP to £5,155 GBP

B+
Cheapest Retailer
-
£2,603 GBP
$3,488 USD
B+
Retailer 2
-
£2,958 GBP
$3,964 USD
View
B+
Retailer 3
-
£2,958 GBP
$3,964 USD
View
B+
Retailer 4
-
£2,958 GBP
$3,964 USD
View
B+
Retailer 5
-
£3,348 GBP
€4,272 EUR
View
B+
Retailer 6
-
£3,414 GBP
$4,574 USD
View
Most Expensive
B
NZ Jewellers
faea9b6e-07c3-4408-892c-43c515d854ef · Oct 30
£5,155 GBP
$6,907 USD
View
6 more retailers have this diamond
Prices start from £2,603 GBPSave up to £2,552 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.

B+
1.20ct Marquise
£2,603 GBP