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Marquise|Natural|GIA

1.20ct D I1 Marquise Natural Diamond

D/I1

Diamond specifications and retailer prices

From £4,289 GBP
$5,747 USD
As of November 2, 2026
Save £2,975 GBP (41%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £7,264 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and I1 clarity (included) and certified by GIA. Listed at 2 retailers as of October 30, 2026, with prices from £4,289 to £7,264, a £2,975 spread on the same certified stone. NZ Jewellers lists it at £7,264. 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

1.20
Carat
D
Colour
I1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
Dimensions11.90 × 5.40 × 3.17 mm
L/W Ratio2.20
Top View
11.90 mm5.40 mm1.20 ctD / I1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA
Side View
Table 62.0%CrownGirdle: MediumPavilionCuletDepth 58.6%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 2
Current: £7,264 GBP|Low: £4,289 GBP|High: £8,527 GBP|Avg: £6,323 GBP|-14.8%
NZ Jewellers
Retailer 2
October 21, 2026
Retailer 2£4,289 GBP
NZ Jewellers£7,264 GBP

3 data points across 2 retailers

2 retailers£4,289 GBP to £7,264 GBP

C
Cheapest Retailer
-
£4,289 GBP
$5,747 USD
Most Expensive
C
NZ Jewellers
779d8873-dde3-4e6f-9f4e-06b885df7134 · Oct 30
£7,264 GBP
$9,733 USD
View
1 more retailer has this diamond
Prices start from £4,289 GBPSave up to £2,975 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.

C
1.20ct Marquise
£4,289 GBP