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Marquise|Natural|GIA

0.70ct H SI2 Marquise Natural Diamond

GD • H/SI2 • GIA 2566609528

Certificate GIA 2566609528

Diamond specifications and retailer prices

From £773 GBP
$1,038 USD
As of October 31, 2026
Save £613 GBP (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,386 GBP at Helzberg Diamonds · As of November 2, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2566609528. Listed at 10 retailers as of October 31, 2026, with prices from £773 to £1,386, a £613 spread on the same certified stone. Helzberg Diamonds lists it at £1,386. 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.31°
Pavilion angle37.84°
OriginNatural
Grading LabGIA
CertificateGIA 2566609528
Dimensions8.44 × 4.54 × 2.89 mm
L/W Ratio1.86
Culet sizeNone
Top View
8.44 mm4.54 mm0.70 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566609528
Side View
Table 57.0%Crown 42.31°Girdle: THK-VTKPavilion 37.84°Culet: NoneDepth 63.6%

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: £1,386 GBP|Low: £773 GBP|High: £1,386 GBP|Avg: £992 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6£773 GBP
Retailer 5£805 GBP
Retailer 8£813 GBP
Retailer 9£843 GBP
Retailer 3£873 GBP
Retailer 4£954 GBP
Retailer 2£1,118 GBP
Retailer 10£1,142 GBP
Retailer 7£1,249 GBP
Helzberg Diamonds£1,386 GBP

14 data points across 10 retailers

10 retailers£773 GBP to £1,386 GBP

B+
Cheapest Retailer
-
£773 GBP
$1,038 USD
B
Retailer 2
-
£805 GBP
$1,080 USD
View
B
Retailer 3
-
£813 GBP
$1,091 USD
View
B
Retailer 4
-
£843 GBP
SGD 1,528 SGD
View
B
Retailer 5
-
£873 GBP
View
B
Retailer 6
-
£954 GBP
$1,280 USD
View
B
Retailer 7
-
£1,118 GBP
€1,429 EUR
View
C
Retailer 8
-
£1,142 GBP
$1,532 USD
View
Retailer 9
-
£1,249 GBP
$1,676 USD
View
Price last confirmed 11 days ago
Most Expensive
C
Helzberg Diamonds
XZRILMMMGPLIO · Nov 2
£1,386 GBP
$1,860 USD
View
9 more retailers have this diamond
Prices start from £773 GBPSave up to £613 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+
0.70ct Marquise
£773 GBP