Marquise|Natural|GIA

1.21ct H SI2 Marquise Natural Diamond

GD • H/SI2 • GIA 2557298982

Certificate GIA 2557298982

Diamond specifications and retailer prices

From £2,521 GBP
As of November 6, 2026
Save £743 GBP (23%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £5,055 GBP at NZ Jewellers · As of October 14, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2557298982. Listed at 13 retailers as of November 6, 2026, with a 29% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

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

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.99°
Pavilion angle41.28°
OriginNatural
Grading LabGIA
CertificateGIA 2557298982
Dimensions9.88 × 5.42 × 3.67 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.88 mm5.42 mm1.21 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557298982
Side View
Table 60.0%Crown 43.99°Girdle: STK-VTKPavilion 41.28°Culet: NoneDepth 67.7%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £3,264 GBP|Low: £1,510 GBP|High: £5,054 GBP|Avg: £2,909 GBP|-3.0%
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 8£1,510 GBP
Retailer 5£2,276 GBP
Retailer 11£2,279 GBP
Retailer 2£2,334 GBP
Retailer 14£2,491 GBP
Retailer 7£2,604 GBP
Retailer 16£2,634 GBP
Retailer 10£2,882 GBP
Retailer 9£2,944 GBP
Retailer 3£3,115 GBP
Retailer 13£3,115 GBP
Retailer 15£3,220 GBP
Retailer 1£3,264 GBP
Retailer 4£3,285 GBP
Retailer 6£3,399 GBP
Retailer 12£4,879 GBP

22 data points across 16 retailers

13 retailers£2,521 GBP to £3,264 GBP

Retailer 1
-
£2,279 GBP
Price last confirmed 19 days ago
Retailer 2
-
£2,334 GBP
View
Price last confirmed 17 days ago
Retailer 3
-
£2,491 GBP
View
Price last confirmed 19 days ago
B+
Retailer 4
-
£2,521 GBP
View
Retailer 5
-
£2,628 GBP
View
Price last confirmed 23 days ago
Retailer 6
-
£2,634 GBP
View
Price last confirmed 19 days ago
Retailer 7
-
£2,705 GBP
View
Price last confirmed 25 days ago
Retailer 8
-
£2,809 GBP
View
Price last confirmed 36 days ago
Retailer 9
-
£2,944 GBP
View
Price last confirmed 17 days ago
B
Retailer 10
-
£3,264 GBP
View
Retailer 11
-
£3,285 GBP
View
Price last confirmed 22 days ago
Retailer 12
-
£4,879 GBP
View
Price last confirmed 18 days ago
Most Expensive
NZ Jewellers
bd0f54de-5bda-479c-8a67-591220e7a51e · Oct 14
£5,055 GBP
$6,766 USD
View
Price last confirmed 23 days ago
12 more retailers have this diamond
Prices start from £2,521 GBPSave up to £743 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
£2,521 GBP