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Marquise|Natural|GIA

1.00ct K IF Marquise Natural Diamond

EX • K/IF • GIA 2557878443

Certificate GIA 2557878443

Diamond specifications and retailer prices

From £1,772 GBP
As of November 6, 2026
Save £2,241 GBP (56%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £4,013 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) 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 2557878443. Listed at 5 retailers as of November 5, 2026, with prices from £1,772 to £4,013, a £2,241 spread on the same certified stone. NZ Jewellers lists it at £4,013. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
K
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceVery Strong
OriginNatural
Grading LabGIA
CertificateGIA 2557878443
Dimensions9.94 × 5.23 × 3.10 mm
L/W Ratio1.90
Top View
9.94 mm5.23 mm1.00 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceVery Strong
CertificateGIA 2557878443
Side View
Table 60.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 59.2%

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: £4,013 GBP|Low: £1,296 GBP|High: £4,013 GBP|Avg: £2,504 GBP|+8.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 5£1,772 GBP
Retailer 4£1,907 GBP
Retailer 2£2,387 GBP
Retailer 3£3,362 GBP
NZ Jewellers£4,013 GBP

28 data points across 5 retailers

5 retailers£1,772 GBP to £4,013 GBP

A
Cheapest Retailer
-
£1,772 GBP
Final sale: no returns
A
Retailer 2
-
£1,907 GBP
View
B+
Retailer 3
-
£2,387 GBP
View
B
Retailer 4
-
£3,362 GBP
View
Most Expensive
C
NZ Jewellers
b538eeaa-dff4-4ae0-95d5-5f3b1c652364 · Nov 5
£4,013 GBP
$5,372 USD
View
4 more retailers have this diamond
Prices start from £1,772 GBPSave up to £2,241 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
1.00ct Marquise
£1,772 GBP