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Marquise|Natural|GIA

1.00ct M SI1 Marquise Natural Diamond

EX • M/SI1 • GIA 7556984671

Certificate GIA 7556984671

Diamond specifications and retailer prices

From £812 GBP
As of November 6, 2026
Save £458 GBP (36%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,270 GBP at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

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), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7556984671. Listed at 5 retailers as of November 4, 2026, with prices from £812 to £1,270, a £458 spread on the same certified stone. Wholesale Diamonds Direct lists it at £1,270. 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

1.00
Carat
M
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.81°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 7556984671
Dimensions9.81 × 5.10 × 3.28 mm
L/W Ratio1.92
Culet sizeNone
Top View
9.81 mm5.10 mm1.00 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7556984671
Side View
Table 58.0%Crown 39.81°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £812 GBP|Low: £575 GBP|High: £1,386 GBP|Avg: £1,015 GBP|-6.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Wholesale Diamonds Direct
November 6, 2026
Retailer 5£575 GBP
Retailer 1£812 GBP
Retailer 2£969 GBP
Retailer 3£1,113 GBP
Retailer 4£1,140 GBP
Wholesale Diamonds Direct£1,270 GBP

35 data points across 6 retailers

5 retailers£812 GBP to £1,270 GBP

A
Cheapest Retailer
-
£812 GBP
A
Retailer 2
-
£969 GBP
View
B+
Retailer 3
-
£1,113 GBP
View
B+
Retailer 4
-
£1,140 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
275094050 · Nov 4
£1,270 GBP
$1,710 USD
View
4 more retailers have this diamond
Prices start from £812 GBPSave up to £458 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.

A
1.00ct Marquise
£812 GBP