Marquise|Natural|GIA

1.01ct K SI1 Marquise Natural Diamond

ID • K/SI1 • GIA 6552581790

Certificate GIA 6552581790

Diamond specifications and retailer prices

From £1,141 GBP
As of November 6, 2026
Save £926 GBP (45%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,278 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552581790. Listed at 16 retailers as of November 3, 2026, with a 81% 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

1.01
Carat
K
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552581790
Dimensions10.27 × 5.28 × 3.29 mm
L/W Ratio1.95
Girdle conditionFaceted
Top View
10.27 mm5.28 mm1.01 ctK / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552581790
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £1,482 GBP|Low: £1,132 GBP|High: £2,748 GBP|Avg: £1,641 GBP|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 4, 2026
Retailer 13£1,141 GBP
Retailer 11£1,257 GBP
Retailer 8£1,263 GBP
Retailer 10£1,271 GBP
Retailer 3£1,322 GBP
Retailer 5£1,366 GBP
Retailer 12£1,397 GBP
Retailer 6£1,468 GBP
Retailer 1£1,482 GBP
Retailer 9£1,666 GBP
Retailer 14£1,876 GBP
Retailer 7£2,067 GBP
Retailer 4£2,268 GBP
Retailer 2£2,689 GBP

31 data points across 14 retailers

16 retailers£1,141 GBP to £2,067 GBP

A
Cheapest Retailer
-
£1,141 GBP
A
Retailer 2
-
£1,257 GBP
View
A
Retailer 3
-
£1,263 GBP
View
A
Retailer 4
-
£1,271 GBP
View
Final sale: no returns
A
Retailer 5
-
£1,322 GBP
View
Retailer 6
-
£1,366 GBP
View
Price last confirmed 9 days ago
A
Retailer 7
-
£1,397 GBP
View
Retailer 8
-
£1,468 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£1,482 GBP
View
B+
Retailer 10
-
£1,607 GBP
View
B+
Retailer 11
-
£1,666 GBP
View
B+
Retailer 12
-
£1,876 GBP
View
B
Retailer 13
-
£2,067 GBP
View
Retailer 14
-
£2,268 GBP
View
Price last confirmed 10 days ago
Retailer 15
-
£2,689 GBP
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
e3b9510b-0fb6-49f8-af91-551d5dfd9af6 · Sep 30
£3,278 GBP
$4,412 USD
View
Price last confirmed 37 days ago
15 more retailers have this diamond
Prices start from £1,141 GBPSave up to £926 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
1.01ct Marquise
£1,141 GBP