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Marquise|Natural|GIA

1.03ct K SI2 Marquise Natural Diamond

ID • K/SI2 • GIA 6552130660

Certificate GIA 6552130660

Diamond specifications and retailer prices

From £1,479 GBP
As of November 3, 2026
Save £2,129 GBP (59%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,609 GBP at NZ Jewellers · As of October 21, 2026
View at NZ Jewellers

About this 1.03ct natural marquise diamond

This 1.03ct 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 6552130660. Listed at 8 retailers as of November 3, 2026, with a 144% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.03
Carat
K
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.43°
Pavilion angle41.37°
OriginNatural
Grading LabGIA
CertificateGIA 6552130660
Dimensions10.08 × 5.23 × 3.37 mm
L/W Ratio1.93
Girdle conditionThick
Key to symbols
Crystal, Cloud, Needle, Natural
Top View
10.08 mm5.23 mm1.03 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552130660
Side View
Table 60.0%Crown 37.43°GirdlePavilion 41.37°CuletDepth 64.4%

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 3
Current: £3,609 GBP|Low: £1,479 GBP|High: £3,609 GBP|Avg: £2,052 GBP|+12.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 5£1,479 GBP
Retailer 7£1,501 GBP
Retailer 3£1,522 GBP
Retailer 6£1,548 GBP
Retailer 2£1,656 GBP
Retailer 4£2,606 GBP
NZ Jewellers£3,609 GBP

34 data points across 7 retailers

8 retailers£1,479 GBP to £3,609 GBP

A
Cheapest Retailer
-
£1,479 GBP
B+
Retailer 2
-
£1,501 GBP
View
B+
Retailer 3
-
£1,522 GBP
View
B+
Retailer 4
-
£1,548 GBP
View
B+
Retailer 5
-
£1,656 GBP
View
Retailer 6
-
£2,606 GBP
View
Price last confirmed 8 days ago
C
Retailer 7
-
£3,609 GBP
View
Most Expensive
NZ Jewellers
a31577e0-8794-4ba5-8250-df591808b3f7 · Oct 21
£3,609 GBP
$4,857 USD
View
Price last confirmed 16 days ago
7 more retailers have this diamond
Prices start from £1,479 GBPSave up to £2,129 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
£1,479 GBP