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Marquise|Natural|GIA

1.00ct K SI1 Marquise Natural Diamond

VG • K/SI1 • GIA 7556338743

Certificate GIA 7556338743

Diamond specifications and retailer prices

From £791 GBP
As of November 5, 2026
Save £667 GBP (46%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,458 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7556338743. Listed at 11 retailers as of November 5, 2026, with prices from £791 to £1,458, a £667 spread on the same certified stone. Wholesale Diamonds Direct lists it at £1,458. 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
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.11°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 7556338743
Dimensions9.60 × 5.18 × 3.40 mm
L/W Ratio1.85
Culet sizeNone
Top View
9.60 mm5.18 mm1.00 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7556338743
Side View
Table 56.0%Crown 40.11°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 65.6%

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 5
Current: £1,069 GBP|Low: £717 GBP|High: £1,573 GBP|Avg: £1,141 GBP|-22.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 6, 2026
Retailer 2£717 GBP
Retailer 6£791 GBP
Retailer 7£879 GBP
Retailer 4£894 GBP
Retailer 11£956 GBP
Retailer 1£1,069 GBP
Retailer 9£1,077 GBP
Retailer 10£1,253 GBP
Retailer 5£1,263 GBP
Retailer 8£1,340 GBP
Retailer 3£1,449 GBP
Wholesale Diamonds Direct£1,458 GBP

24 data points across 12 retailers

11 retailers£791 GBP to £1,458 GBP

A
Cheapest Retailer
-
£791 GBP
A
Retailer 2
-
£879 GBP
View
A
Retailer 3
-
£894 GBP
View
A
Retailer 4
-
£956 GBP
View
B+
Retailer 5
-
£1,069 GBP
View
A
Retailer 6
-
£1,077 GBP
View
B+
Retailer 7
-
£1,173 GBP
View
B+
Retailer 8
-
£1,253 GBP
View
B+
Retailer 9
-
£1,263 GBP
View
B+
Retailer 10
-
£1,340 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
262932450 · Nov 6
£1,458 GBP
$1,951 USD
View
10 more retailers have this diamond
Prices start from £791 GBPSave up to £667 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
£791 GBP