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Marquise|Natural|GIA

1.00ct K SI1 Marquise Natural Diamond

VG • K/SI1 • GIA 2564382881

Certificate GIA 2564382881

Diamond specifications and retailer prices

From £1,294 GBP
As of October 31, 2026
Save £866 GBP (40%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,160 GBP at Wholesale Diamonds Direct · As of November 3, 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 2564382881. Listed at 15 retailers as of October 31, 2026, with prices from £1,294 to £2,160, a £866 spread on the same certified stone. Wholesale Diamonds Direct lists it at £2,160. 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
FluorescenceNone
Crown angle40.06°
Pavilion angle41.77°
OriginNatural
Grading LabGIA
CertificateGIA 2564382881
Dimensions9.70 × 5.16 × 3.34 mm
L/W Ratio1.88
Culet sizeNone
Top View
9.70 mm5.16 mm1.00 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564382881
Side View
Table 61.0%Crown 40.06°Girdle: STK-VTKPavilion 41.77°Culet: NoneDepth 64.8%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: £1,346 GBP|Low: £1,294 GBP|High: £2,518 GBP|Avg: £1,676 GBP|-5.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Wholesale Diamonds Direct
November 5, 2026
Retailer 6£1,294 GBP
Retailer 5£1,343 GBP
Retailer 11£1,343 GBP
Retailer 1£1,346 GBP
Retailer 4£1,354 GBP
Retailer 3£1,378 GBP
Retailer 2£1,445 GBP
Retailer 8£1,452 GBP
Retailer 7£1,517 GBP
Retailer 13£1,588 GBP
Retailer 12£1,665 GBP
Retailer 14£1,720 GBP
Retailer 10£1,865 GBP
Retailer 9£2,023 GBP
Wholesale Diamonds Direct£2,160 GBP

23 data points across 15 retailers

15 retailers£1,294 GBP to £2,160 GBP

A
Cheapest Retailer
-
£1,294 GBP
A
Retailer 2
-
£1,343 GBP
View
A
Retailer 3
-
£1,343 GBP
View
A
Retailer 4
-
£1,346 GBP
View
A
Retailer 5
-
£1,354 GBP
View
A
Retailer 6
-
£1,378 GBP
View
B+
Retailer 7
-
£1,445 GBP
View
B+
Retailer 8
-
£1,452 GBP
View
B+
Retailer 9
-
£1,517 GBP
View
B+
Retailer 10
-
£1,588 GBP
View
B+
Retailer 11
-
£1,665 GBP
View
B+
Retailer 12
-
£1,720 GBP
View
B
Retailer 13
-
£1,865 GBP
View
B
Retailer 14
-
£2,023 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
418966451 · Nov 3
£2,160 GBP
$2,891 USD
View
14 more retailers have this diamond
Prices start from £1,294 GBPSave up to £866 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
£1,294 GBP