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Marquise|Natural|GIA

0.71ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6243117735

Certificate GIA 6243117735

Diamond specifications and retailer prices

From £934 GBP
As of November 4, 2026
Save £740 GBP (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,674 GBP at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 0.71ct natural marquise diamond

This 0.71ct natural marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6243117735. Listed at 12 retailers as of November 4, 2026, with prices from £934 to £1,674, a £740 spread on the same certified stone. Helzberg Diamonds lists it at £1,674. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.71
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.01°
Pavilion angle40.98°
OriginNatural
Grading LabGIA
CertificateGIA 6243117735
Dimensions8.77 × 4.63 × 2.96 mm
L/W Ratio1.89
Culet sizeNone
Top View
8.77 mm4.63 mm0.71 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6243117735
Side View
Table 60.0%Crown 40.01°Girdle: THN-VTKPavilion 40.98°Culet: NoneDepth 63.9%

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: £1,674 GBP|Low: £934 GBP|High: £1,674 GBP|Avg: £1,201 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
November 6, 2026
Retailer 9£934 GBP
Retailer 2£950 GBP
Retailer 8£956 GBP
Retailer 11£1,001 GBP
Retailer 4£1,017 GBP
Retailer 7£1,034 GBP
Retailer 5£1,171 GBP
Retailer 3£1,310 GBP
Retailer 6£1,338 GBP
Retailer 10£1,423 GBP
Retailer 12£1,508 GBP
Helzberg Diamonds£1,674 GBP

4 data points across 12 retailers

12 retailers£934 GBP to £1,674 GBP

B+
Cheapest Retailer
-
£934 GBP
B+
Retailer 2
-
£950 GBP
View
B+
Retailer 3
-
£956 GBP
View
B+
Retailer 4
-
£1,001 GBP
View
B+
Retailer 5
-
£1,017 GBP
View
B+
Retailer 6
-
£1,034 GBP
View
B
Retailer 7
-
£1,171 GBP
View
B
Retailer 8
-
£1,310 GBP
View
B
Retailer 9
-
£1,338 GBP
View
B
Retailer 10
-
£1,423 GBP
View
B
Retailer 11
-
£1,508 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRMIKJHHNNJL · Nov 6
£1,674 GBP
$2,240 USD
View
11 more retailers have this diamond
Prices start from £934 GBPSave up to £740 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+
0.71ct Marquise
£934 GBP