Marquise|Natural|GIA

1.01ct K SI1 Marquise Natural Diamond

ID • K/SI1 • GIA 1553980832

Certificate GIA 1553980832

Diamond specifications and retailer prices

From £1,227 GBP
As of November 6, 2026
Save £1,609 GBP (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,537 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 1553980832. Listed at 15 retailers as of November 4, 2026, with a 131% 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553980832
Dimensions10.22 × 5.24 × 3.33 mm
L/W Ratio1.95
Girdle conditionFaceted
Top View
10.22 mm5.24 mm1.01 ctK / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1553980832
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.6%

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: £2,149 GBP|Low: £1,207 GBP|High: £2,950 GBP|Avg: £1,728 GBP|+7.8%
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 6, 2026
Retailer 3£1,227 GBP
Retailer 11£1,342 GBP
Retailer 5£1,357 GBP
Retailer 6£1,363 GBP
Retailer 10£1,415 GBP
Retailer 13£1,501 GBP
Retailer 14£1,508 GBP
Retailer 4£1,560 GBP
Retailer 7£1,588 GBP
Retailer 2£1,779 GBP
Retailer 8£1,981 GBP
Retailer 1£2,149 GBP
Retailer 12£2,427 GBP
Retailer 9£2,836 GBP

28 data points across 14 retailers

15 retailers£1,227 GBP to £2,836 GBP

A
Cheapest Retailer
-
£1,227 GBP
A
Retailer 2
-
£1,342 GBP
View
A
Retailer 3
-
£1,357 GBP
View
Final sale: no returns
B+
Retailer 4
-
£1,363 GBP
View
A
Retailer 5
-
£1,415 GBP
View
B+
Retailer 6
-
£1,501 GBP
View
B+
Retailer 7
-
£1,508 GBP
View
B+
Retailer 8
-
£1,560 GBP
View
B+
Retailer 9
-
£1,588 GBP
View
B+
Retailer 10
-
£1,779 GBP
View
B
Retailer 11
-
£1,981 GBP
View
B
Retailer 12
-
£2,149 GBP
View
B
Retailer 13
-
£2,427 GBP
View
B
Retailer 14
-
£2,836 GBP
View
Most Expensive
NZ Jewellers
431cc8d2-efdb-4db1-b695-3b7c1f0c4632 · Sep 30
£3,537 GBP
$4,760 USD
View
Price last confirmed 36 days ago
14 more retailers have this diamond
Prices start from £1,227 GBPSave up to £1,609 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
£1,227 GBP