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Marquise|Natural|GIA

1.00ct H VS1 Marquise Natural Diamond

VG • H/VS1 • GIA 1246028379

Certificate GIA 1246028379

Diamond specifications and retailer prices

From £2,782 GBP
As of November 4, 2026
Save £2,202 GBP (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,984 GBP at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1246028379. Listed at 17 retailers as of November 4, 2026, with prices from £2,782 to £4,984, a £2,202 spread on the same certified stone. Helzberg Diamonds lists it at £4,984. 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
H
Colour
VS1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.46°
Pavilion angle38.54°
OriginNatural
Grading LabGIA
CertificateGIA 1246028379
Dimensions9.76 × 5.26 × 3.16 mm
L/W Ratio1.86
Culet sizeNone
Top View
9.76 mm5.26 mm1.00 ctH / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1246028379
Side View
Table 57.0%Crown 37.46°Girdle: STK-VTKPavilion 38.54°Culet: NDepth 60.1%

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 4
Current: £4,984 GBP|Low: £2,782 GBP|High: £4,984 GBP|Avg: £3,464 GBP
Helzberg Diamonds
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
Retailer 15
Retailer 16
Retailer 17
November 5, 2026
Retailer 15£2,782 GBP
Retailer 3£2,825 GBP
Retailer 2£2,849 GBP
Retailer 14£2,854 GBP
Retailer 16£2,947 GBP
Retailer 8£3,036 GBP
Retailer 11£3,209 GBP
Retailer 4£3,425 GBP
Retailer 12£3,458 GBP
Retailer 6£3,520 GBP
Retailer 7£3,543 GBP
Retailer 13£3,584 GBP
Retailer 17£3,849 GBP
Retailer 10£3,859 GBP
Retailer 5£4,691 GBP
Retailer 9£4,974 GBP
Helzberg Diamonds£4,984 GBP

29 data points across 17 retailers

17 retailers£2,782 GBP to £4,984 GBP

A
Cheapest Retailer
-
£2,782 GBP
A
Retailer 2
-
£2,825 GBP
View
A
Retailer 3
-
£2,849 GBP
View
B+
Retailer 4
-
£2,854 GBP
View
B+
Retailer 5
-
£2,947 GBP
View
B+
Retailer 6
-
£3,036 GBP
View
B+
Retailer 7
-
£3,209 GBP
View
B+
Retailer 8
-
£3,425 GBP
View
B+
Retailer 9
-
£3,458 GBP
View
B+
Retailer 10
-
£3,520 GBP
View
B+
Retailer 11
-
£3,543 GBP
View
B
Retailer 12
-
£3,584 GBP
View
B+
Retailer 13
-
£3,849 GBP
View
B+
Retailer 14
-
£3,859 GBP
View
B
Retailer 15
-
£4,691 GBP
View
B
Retailer 16
-
£4,974 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRHIKMGIOJNP · Nov 4
£4,984 GBP
$6,708 USD
View
16 more retailers have this diamond
Prices start from £2,782 GBPSave up to £2,202 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
£2,782 GBP