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Marquise|Natural|GIA

1.00ct H VS1 Marquise Natural Diamond

VG • H/VS1 • GIA 5242056188

Certificate GIA 5242056188

Diamond specifications and retailer prices

From £2,762 GBP
As of November 4, 2026
Save £2,187 GBP (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,950 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 5242056188. Listed at 17 retailers as of November 4, 2026, with prices from £2,762 to £4,950, a £2,187 spread on the same certified stone. Helzberg Diamonds lists it at £4,950. 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
SymmetryVery Good
FluorescenceFaint
Crown angle40.81°
Pavilion angle41.15°
OriginNatural
Grading LabGIA
CertificateGIA 5242056188
Dimensions9.55 × 5.16 × 3.39 mm
L/W Ratio1.85
Culet sizeNone
Top View
9.55 mm5.16 mm1.00 ctH / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5242056188
Side View
Table 62.0%Crown 40.81°Girdle: MED-VTKPavilion 41.15°Culet: NoneDepth 65.7%

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: £4,950 GBP|Low: £2,762 GBP|High: £4,950 GBP|Avg: £3,489 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
Retailer 18
November 5, 2026
Retailer 15£2,762 GBP
Retailer 8£2,797 GBP
Retailer 18£2,806 GBP
Retailer 11£2,887 GBP
Retailer 2£2,926 GBP
Retailer 7£3,015 GBP
Retailer 10£3,057 GBP
Retailer 13£3,187 GBP
Retailer 14£3,479 GBP
Retailer 4£3,497 GBP
Retailer 5£3,521 GBP
Retailer 17£3,560 GBP
Retailer 6£3,827 GBP
Retailer 12£3,833 GBP
Retailer 9£3,942 GBP
Retailer 16£4,659 GBP
Retailer 3£4,941 GBP
Helzberg Diamonds£4,950 GBP

26 data points across 18 retailers

17 retailers£2,762 GBP to £4,950 GBP

B+
Cheapest Retailer
-
£2,762 GBP
A
Retailer 2
-
£2,797 GBP
View
B+
Retailer 3
-
£2,806 GBP
View
B+
Retailer 4
-
£2,887 GBP
View
B+
Retailer 5
-
£2,926 GBP
View
B+
Retailer 6
-
£3,015 GBP
View
B+
Retailer 7
-
£3,057 GBP
View
B+
Retailer 8
-
£3,187 GBP
View
B+
Retailer 9
-
£3,479 GBP
View
B
Retailer 10
-
£3,497 GBP
View
B
Retailer 11
-
£3,521 GBP
View
B
Retailer 12
-
£3,560 GBP
View
B
Retailer 13
-
£3,827 GBP
View
B+
Retailer 14
-
£3,833 GBP
View
B
Retailer 15
-
£4,659 GBP
View
B
Retailer 16
-
£4,941 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRLIKIGLMHOO · Nov 4
£4,950 GBP
$6,662 USD
View
16 more retailers have this diamond
Prices start from £2,762 GBPSave up to £2,187 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
£2,762 GBP