CaratHunter
Plans
Marquise|Natural|HRD

1.21ct H SI2 Marquise Natural Diamond

ID • H/SI2 • HRD 260000154539

Certificate HRD 260000154539

Diamond specifications and retailer prices

From £1,384 GBP
As of November 6, 2026
Save £2,069 GBP (60%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,453 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 260000154539. Listed at 13 retailers as of November 5, 2026, with prices from £1,384 to £3,453, a £2,069 spread on the same certified stone. NZ Jewellers lists it at £3,453. 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

1.21
Carat
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabHRD
CertificateHRD 260000154539
Dimensions10.45 × 5.45 × 3.47 mm
L/W Ratio1.92
Top View
10.45 mm5.45 mm1.21 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateHRD 260000154539
Side View
Table 62.0%CrownGirdle: MediumPavilionCulet: 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: £3,453 GBP|Low: £1,327 GBP|High: £3,453 GBP|Avg: £1,929 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 2£1,384 GBP
Retailer 5£1,525 GBP
Retailer 11£1,532 GBP
Retailer 9£1,606 GBP
Retailer 4£1,652 GBP
Retailer 12£1,652 GBP
Retailer 13£1,728 GBP
Retailer 8£1,745 GBP
Retailer 10£1,905 GBP
Retailer 3£1,906 GBP
Retailer 7£2,062 GBP
Retailer 6£2,886 GBP
NZ Jewellers£3,453 GBP

38 data points across 13 retailers

13 retailers£1,384 GBP to £3,453 GBP

A
Cheapest Retailer
-
£1,384 GBP
A
Retailer 2
-
£1,525 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,532 GBP
View
A
Retailer 4
-
£1,606 GBP
View
A
Retailer 5
-
£1,652 GBP
View
Retailer 6
-
£1,652 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£1,728 GBP
View
B+
Retailer 8
-
£1,745 GBP
View
A
Retailer 9
-
£1,905 GBP
View
A
Retailer 10
-
£1,906 GBP
View
A
Retailer 11
-
£2,062 GBP
View
B+
Retailer 12
-
£2,886 GBP
View
Most Expensive
B
NZ Jewellers
644f6853-d0ff-47b2-b666-cab2248664b1 · Nov 5
£3,453 GBP
$4,622 USD
View
12 more retailers have this diamond
Prices start from £1,384 GBPSave up to £2,069 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
1.21ct Marquise
£1,384 GBP