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Marquise|Natural|GIA

1.21ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 2546447470

Certificate GIA 2546447470

Diamond specifications and retailer prices

From £2,748 GBP
As of November 4, 2026
Save £3,635 GBP (57%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: £6,383 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 GIA 2546447470. Listed at 29 retailers as of November 4, 2026, with prices from £2,748 to £6,383, a £3,635 spread on the same certified stone. NZ Jewellers lists it at £6,383. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle42.79°
Pavilion angle36.3°
OriginNatural
Grading LabGIA
CertificateGIA 2546447470
Dimensions9.85 × 5.54 × 3.47 mm
L/W Ratio1.78
Top View
9.85 mm5.54 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546447470
Side View
Table 60.0%Crown 42.79°Girdle: VTK-ETKPavilion 36.3°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £6,383 GBP|Low: £2,748 GBP|High: £6,383 GBP|Avg: £3,755 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 6, 2026
Retailer 19£2,748 GBP
Retailer 8£2,781 GBP
Retailer 20£2,892 GBP
Retailer 15£2,921 GBP
Retailer 7£3,063 GBP
Retailer 22£3,206 GBP
Retailer 14£3,299 GBP
Retailer 5£3,319 GBP
Retailer 9£3,319 GBP
Retailer 21£3,319 GBP
Retailer 6£3,328 GBP
Retailer 11£3,460 GBP
Retailer 16£3,472 GBP
Retailer 10£3,473 GBP
Retailer 17£3,586 GBP
Retailer 2£3,603 GBP
Retailer 3£3,698 GBP
Retailer 4£3,830 GBP
Retailer 13£3,891 GBP
Retailer 12£4,359 GBP
Retailer 23£5,301 GBP
Retailer 18£5,820 GBP
NZ Jewellers£6,383 GBP

28 data points across 23 retailers

29 retailers£2,748 GBP to £6,383 GBP

B+
Cheapest Retailer
-
£2,748 GBP
B+
Retailer 2
-
£2,781 GBP
View
B+
Retailer 3
-
£2,863 GBP
View
B+
Retailer 4
-
£2,892 GBP
View
B+
Retailer 5
-
£2,921 GBP
View
B+
Retailer 6
-
£2,928 GBP
View
B+
Retailer 7
-
£3,029 GBP
View
B
Retailer 8
-
£3,063 GBP
View
Final sale: no returns
B
Retailer 9
-
£3,206 GBP
View
B+
Retailer 10
-
£3,299 GBP
View
B+
Retailer 11
-
£3,319 GBP
View
B+
Retailer 12
-
£3,319 GBP
View
Retailer 13
-
£3,319 GBP
View
Price last confirmed 8 days ago
B
Retailer 14
-
£3,328 GBP
View
Retailer 15
-
£3,460 GBP
View
Price last confirmed 14 days ago
B
Retailer 16
-
£3,472 GBP
View
B
Retailer 17
-
£3,473 GBP
View
B
Retailer 18
-
£3,586 GBP
View
B
Retailer 19
-
£3,603 GBP
View
B
Retailer 20
-
£3,691 GBP
View
B
Retailer 21
-
£3,691 GBP
View
B
Retailer 22
-
£3,698 GBP
View
B
Retailer 23
-
£3,810 GBP
View
Retailer 24
-
£3,830 GBP
View
Price last confirmed 66 days ago
B
Retailer 25
-
£3,830 GBP
View
B
Retailer 26
-
£3,891 GBP
View
B
Retailer 27
-
£5,301 GBP
View
B
Retailer 28
-
£5,820 GBP
View
Most Expensive
B
NZ Jewellers
22ffab32-bad0-44e1-9582-c6f93a08b4b0 · Nov 5
£6,383 GBP
$8,544 USD
View
28 more retailers have this diamond
Prices start from £2,748 GBPSave up to £3,635 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.

B+
1.21ct Marquise
£2,748 GBP