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Marquise|Natural|GIA

0.70ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 1563602791

Certificate GIA 1563602791

Diamond specifications and retailer prices

From £583 GBP
As of November 4, 2026
Save £464 GBP (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,047 GBP at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 0.7ct natural marquise diamond

This 0.7ct natural marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1563602791. Listed at 10 retailers as of November 4, 2026, with prices from £583 to £1,047, a £464 spread on the same certified stone. Helzberg Diamonds lists it at £1,047. 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

0.70
Carat
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.04°
Pavilion angle41.23°
OriginNatural
Grading LabGIA
CertificateGIA 1563602791
Dimensions8.51 × 4.58 × 2.99 mm
L/W Ratio1.86
Culet sizeNone
Top View
8.51 mm4.58 mm0.70 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1563602791
Side View
Table 60.0%Crown 40.04°Girdle: MED-THKPavilion 41.23°Culet: NoneDepth 65.3%

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: £1,047 GBP|Low: £583 GBP|High: £1,047 GBP|Avg: £765 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7£583 GBP
Retailer 6£631 GBP
Retailer 9£636 GBP
Retailer 8£648 GBP
Retailer 4£674 GBP
Retailer 2£733 GBP
Retailer 3£849 GBP
Retailer 10£944 GBP
Retailer 5£949 GBP
Helzberg Diamonds£1,047 GBP

10 data points across 10 retailers

10 retailers£583 GBP to £1,047 GBP

A
Cheapest Retailer
-
£583 GBP
Retailer 2
-
£631 GBP
View
Price last confirmed 20 days ago
B+
Retailer 3
-
£636 GBP
View
B+
Retailer 4
-
£648 GBP
View
B+
Retailer 5
-
£674 GBP
View
B+
Retailer 6
-
£733 GBP
View
B
Retailer 7
-
£849 GBP
View
B
Retailer 8
-
£944 GBP
View
B
Retailer 9
-
£949 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRHLMJMGINPH · Nov 6
£1,047 GBP
$1,402 USD
View
9 more retailers have this diamond
Prices start from £583 GBPSave up to £464 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
0.70ct Marquise
£583 GBP