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Marquise|Natural|GIA

1.00ct M SI1 Marquise Natural Diamond

M/SI1 • GIA 2296266960

Certificate GIA 2296266960

Diamond specifications and retailer prices

From £768 GBP
As of November 6, 2026
Save £284 GBP (27%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,052 GBP at B2C Jewels · As of November 6, 2026
View at B2C Jewels

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included) and certified by GIA 2296266960. Listed at 2 retailers as of November 6, 2026, with prices from £768 to £1,052, a £284 spread on the same certified stone. B2C Jewels lists it at £1,052. 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

1.00
Carat
M
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2296266960
Dimensions10.28 × 5.00 × 3.20 mm
L/W Ratio2.06
Top View
10.28 mm5.00 mm1.00 ctM / SI1
OriginNatural
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 2296266960
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 63.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £1,052 GBP|Low: £768 GBP|High: £1,052 GBP|Avg: £919 GBP
B2C Jewels
Retailer 2
November 6, 2026
Retailer 2£768 GBP
B2C Jewels£1,052 GBP

28 data points across 2 retailers

2 retailers£768 GBP to £1,052 GBP

B+
Cheapest Retailer
-
£768 GBP
Most Expensive
B
B2C Jewels
11567605 · Nov 6
£1,052 GBP
$1,416 USD
View
1 more retailer has this diamond
Prices start from £768 GBPSave up to £284 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+
1.00ct Marquise
£768 GBP