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Marquise|Natural|GIA

0.71ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6561736537

Certificate GIA 6561736537

Diamond specifications and retailer prices

From £882 GBP
$1,184 USD
As of October 31, 2026
Save £700 GBP (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,582 GBP at Helzberg Diamonds · As of November 1, 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 I 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 6561736537. Listed at 12 retailers as of October 31, 2026, with prices from £882 to £1,582, a £700 spread on the same certified stone. Helzberg Diamonds lists it at £1,582. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.61°
Pavilion angle40.24°
OriginNatural
Grading LabGIA
CertificateGIA 6561736537
Dimensions8.72 × 4.60 × 2.95 mm
L/W Ratio1.90
Culet sizeNone
Top View
8.72 mm4.60 mm0.71 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561736537
Side View
Table 58.0%Crown 39.61°Girdle: STK-VTKPavilion 40.24°Culet: NoneDepth 64.1%

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: Oct 31
Current: £1,582 GBP|Low: £882 GBP|High: £1,582 GBP|Avg: £1,094 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 2, 2026
Retailer 7£882 GBP
Retailer 12£897 GBP
Retailer 11£902 GBP
Retailer 9£949 GBP
Retailer 4£961 GBP
Retailer 5£995 GBP
Retailer 8£1,081 GBP
Retailer 6£1,107 GBP
Retailer 3£1,256 GBP
Retailer 2£1,272 GBP
Retailer 10£1,345 GBP
Helzberg Diamonds£1,582 GBP

5 data points across 12 retailers

12 retailers£882 GBP to £1,582 GBP

B+
Cheapest Retailer
-
£882 GBP
$1,184 USD
B
Retailer 2
-
£897 GBP
$1,204 USD
View
B
Retailer 3
-
£902 GBP
$1,210 USD
View
B+
Retailer 4
-
£949 GBP
$1,273 USD
View
B+
Retailer 5
-
£961 GBP
SGD 1,742 SGD
View
B+
Retailer 6
-
£995 GBP
View
B
Retailer 7
-
£1,081 GBP
$1,450 USD
View
B
Retailer 8
-
£1,107 GBP
$1,485 USD
View
B
Retailer 9
-
£1,256 GBP
$1,685 USD
View
B
Retailer 10
-
£1,272 GBP
€1,626 EUR
View
B
Retailer 11
-
£1,345 GBP
$1,805 USD
View
Most Expensive
B
Helzberg Diamonds
XZRMLMHNJMLJN · Nov 1
£1,582 GBP
$2,123 USD
View
11 more retailers have this diamond
Prices start from £882 GBPSave up to £700 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
£882 GBP