CaratHunter
Plans
Marquise|Natural|GIA

0.70ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 6555348642

Certificate GIA 6555348642

Diamond specifications and retailer prices

From £804 GBP
$1,079 USD
As of October 31, 2026
Save £637 GBP (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,441 GBP at Helzberg Diamonds · As of November 3, 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 G 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 6555348642. Listed at 14 retailers as of October 31, 2026, with prices from £804 to £1,441, a £637 spread on the same certified stone. Helzberg Diamonds lists it at £1,441. 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

0.70
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.58°
Pavilion angle39.67°
OriginNatural
Grading LabGIA
CertificateGIA 6555348642
Dimensions9.37 × 4.43 × 2.80 mm
L/W Ratio2.12
Culet sizeNone
Top View
9.37 mm4.43 mm0.70 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555348642
Side View
Table 57.0%Crown 38.58°Girdle: STK-VTKPavilion 39.67°Culet: NoneDepth 63.2%

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: Oct 31
Current: £1,441 GBP|Low: £804 GBP|High: £1,531 GBP|Avg: £1,055 GBP|-5.9%
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
November 3, 2026
Retailer 8£804 GBP
Retailer 12£813 GBP
Retailer 9£845 GBP
Retailer 10£870 GBP
Retailer 4£875 GBP
Retailer 2£907 GBP
Retailer 13£990 GBP
Retailer 7£1,009 GBP
Retailer 6£1,163 GBP
Retailer 3£1,174 GBP
Retailer 11£1,226 GBP
Retailer 5£1,310 GBP
Helzberg Diamonds£1,441 GBP

32 data points across 13 retailers

14 retailers£804 GBP to £1,441 GBP

A
Cheapest Retailer
-
£804 GBP
$1,079 USD
B+
Retailer 2
-
£813 GBP
SGD 1,474 SGD
View
B+
Retailer 3
-
£845 GBP
$1,134 USD
View
B+
Retailer 4
-
£870 GBP
$1,167 USD
View
B+
Retailer 5
-
£875 GBP
SGD 1,587 SGD
View
B+
Retailer 6
-
£907 GBP
View
B+
Retailer 7
-
£990 GBP
$1,328 USD
View
B
Retailer 8
-
£1,009 GBP
$1,354 USD
View
B
Retailer 9
-
£1,163 GBP
€1,486 EUR
View
B
Retailer 10
-
£1,174 GBP
$1,575 USD
View
B
Retailer 11
-
£1,202 GBP
$1,613 USD
View
B
Retailer 12
-
£1,226 GBP
$1,645 USD
View
Retailer 13
-
£1,310 GBP
$1,757 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Helzberg Diamonds
XZRMLLLJKOMKI · Nov 3
£1,441 GBP
$1,934 USD
View
13 more retailers have this diamond
Prices start from £804 GBPSave up to £637 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
£804 GBP