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Marquise|Natural|GIA

1.01ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 2245097453

Certificate GIA 2245097453

Diamond specifications and retailer prices

From £2,091 GBP
As of November 4, 2026
Save £1,885 GBP (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,976 GBP at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2245097453. Listed at 15 retailers as of November 4, 2026, with prices from £2,091 to £3,976, a £1,885 spread on the same certified stone. Helzberg Diamonds lists it at £3,976. 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

1.01
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.16°
Pavilion angle37.85°
OriginNatural
Grading LabGIA
CertificateGIA 2245097453
Dimensions9.38 × 5.15 × 3.23 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.38 mm5.15 mm1.01 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245097453
Side View
Table 60.0%Crown 43.16°Girdle: STK-VTKPavilion 37.85°Culet: NDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £3,976 GBP|Low: £2,091 GBP|High: £3,976 GBP|Avg: £2,718 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
November 5, 2026
Retailer 12£2,091 GBP
Retailer 7£2,109 GBP
Retailer 2£2,142 GBP
Retailer 6£2,255 GBP
Retailer 11£2,260 GBP
Retailer 10£2,300 GBP
Retailer 8£2,441 GBP
Retailer 5£2,519 GBP
Retailer 3£2,675 GBP
Retailer 14£2,686 GBP
Retailer 4£2,747 GBP
Retailer 9£2,788 GBP
Retailer 13£3,526 GBP
Retailer 15£3,744 GBP
Helzberg Diamonds£3,976 GBP

19 data points across 15 retailers

15 retailers£2,091 GBP to £3,976 GBP

B+
Cheapest Retailer
-
£2,091 GBP
B+
Retailer 2
-
£2,109 GBP
View
B+
Retailer 3
-
£2,142 GBP
View
B+
Retailer 4
-
£2,255 GBP
View
B+
Retailer 5
-
£2,260 GBP
View
Retailer 6
-
£2,300 GBP
View
Price last confirmed 8 days ago
B
Retailer 7
-
£2,441 GBP
View
B
Retailer 8
-
£2,519 GBP
View
B
Retailer 9
-
£2,675 GBP
View
B
Retailer 10
-
£2,686 GBP
View
B
Retailer 11
-
£2,747 GBP
View
B
Retailer 12
-
£2,788 GBP
View
C
Retailer 13
-
£3,526 GBP
View
C
Retailer 14
-
£3,744 GBP
View
Most Expensive
C
Helzberg Diamonds
XZRIIKLGPNKLJ · Nov 4
£3,976 GBP
$5,351 USD
View
14 more retailers have this diamond
Prices start from £2,091 GBPSave up to £1,885 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.

B+
1.01ct Marquise
£2,091 GBP