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Marquise|Natural|GIA

1.22ct I SI1 Marquise Natural Diamond

I/SI1

Diamond specifications and retailer prices

From £3,920 GBP
As of November 5, 2026
Save £674 GBP (15%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £7,777 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.22ct natural marquise diamond

This 1.22ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included) and certified by GIA. Listed at 4 retailers as of November 5, 2026, with a relatively tight 17% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.22
Carat
I
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
Dimensions11.70 × 5.38 × 3.40 mm
L/W Ratio2.17
Top View
11.70 mm5.38 mm1.22 ctI / SI1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA
Side View
Table 59.0%CrownGirdle: MediumPavilionCuletDepth 63.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £7,777 GBP|Low: £3,920 GBP|High: £7,777 GBP|Avg: £5,175 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3£3,920 GBP
Retailer 2£4,511 GBP
Retailer 4£4,594 GBP
NZ Jewellers£7,777 GBP

33 data points across 4 retailers

4 retailers£3,920 GBP to £4,594 GBP

B
Cheapest Retailer
-
£3,920 GBP
C
Retailer 2
-
£4,511 GBP
View
C
Retailer 3
-
£4,594 GBP
View
Most Expensive
NZ Jewellers
77773a6a-15c8-4bab-a814-2f28f4f63139 · Nov 5
£7,777 GBP
$10,409 USD
View
Price under review
3 more retailers have this diamond
Prices start from £3,920 GBPSave up to £674 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
1.22ct Marquise
£3,920 GBP