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Marquise|Natural|GIA

1.00ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 6565065985

Certificate GIA 6565065985

Diamond specifications and retailer prices

From £1,007 GBP
As of November 6, 2026
Save £2,268 GBP (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,275 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565065985. Listed at 15 retailers as of November 5, 2026, with prices from £1,007 to £3,275, a £2,268 spread on the same certified stone. NZ Jewellers lists it at £3,275. 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

1.00
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6565065985
Dimensions10.23 × 4.90 × 3.20 mm
L/W Ratio2.09
Girdle conditionFaceted
Culet sizeNone
Top View
10.23 mm4.90 mm1.00 ctK / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6565065985
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 65.3%

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: £1,010 GBP|Low: £999 GBP|High: £2,381 GBP|Avg: £1,446 GBP|-3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8£1,007 GBP
Retailer 1£1,010 GBP
Retailer 5£1,220 GBP
Retailer 4£1,236 GBP
Retailer 2£1,398 GBP
Retailer 9£1,405 GBP
Retailer 3£1,505 GBP
Retailer 6£1,826 GBP
Retailer 7£2,352 GBP

34 data points across 9 retailers

15 retailers£1,007 GBP to £3,275 GBP

A
Cheapest Retailer
-
£1,007 GBP
A
Retailer 2
-
£1,010 GBP
View
A
Retailer 3
-
£1,220 GBP
View
A
Retailer 4
-
£1,236 GBP
View
B+
Retailer 5
-
£1,343 GBP
View
B+
Retailer 6
-
£1,398 GBP
View
B+
Retailer 7
-
£1,405 GBP
View
B+
Retailer 8
-
£1,428 GBP
View
B+
Retailer 9
-
£1,456 GBP
View
B+
Retailer 10
-
£1,505 GBP
View
B+
Retailer 11
-
£1,549 GBP
View
B
Retailer 12
-
£1,826 GBP
View
B
Retailer 13
-
£1,941 GBP
View
B
Retailer 14
-
£2,352 GBP
View
Most Expensive
C
NZ Jewellers
1e0d0309-ffd9-4a9c-90de-614694cb2360 · Nov 5
£3,275 GBP
$4,408 USD
View
14 more retailers have this diamond
Prices start from £1,007 GBPSave up to £2,268 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
£1,007 GBP