Marquise|Natural|IGI

0.70ct K SI1 Marquise Natural Diamond

VG • K/SI1 • IGI 809629840

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 809629840

Diamond specifications and retailer prices

From £316 GBP
As of November 6, 2026
Save £658 GBP (68%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,325 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 0.7ct natural marquise diamond

This 0.7ct natural marquise sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 809629840. Listed at 14 retailers as of November 4, 2026, with a 208% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle39.7°
OriginNatural
Grading LabIGI
CertificateIGI 809629840
Dimensions8.87 × 4.62 × 2.91 mm
L/W Ratio1.92
Girdle conditionFaceted
Top View
8.87 mm4.62 mm0.70 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 809629840
Side View
Table 60.0%Crown 37.5°Girdle: STK-VTKPavilion 39.7°Culet: NoneDepth 63.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £316 GBP|Low: £316 GBP|High: £987 GBP|Avg: £589 GBP|-5.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1£316 GBP
Retailer 4£528 GBP
Retailer 2£530 GBP
Retailer 6£568 GBP
Retailer 3£624 GBP
Retailer 7£631 GBP
Retailer 5£974 GBP

27 data points across 7 retailers

14 retailers£316 GBP to £974 GBP

A
Cheapest Retailer
-
£316 GBP
Retailer 2
-
£392 GBP
View
Price last confirmed 95 days ago
Retailer 3
-
£423 GBP
View
Price last confirmed 29 days ago
Retailer 4
-
£455 GBP
View
Price last confirmed 36 days ago
Retailer 5
-
£487 GBP
View
Price last confirmed 38 days ago
B+
Retailer 6
-
£520 GBP
View
B+
Retailer 7
-
£528 GBP
View
B+
Retailer 8
-
£529 GBP
View
B+
Retailer 9
-
£530 GBP
View
B+
Retailer 10
-
£568 GBP
View
B+
Retailer 11
-
£624 GBP
View
B+
Retailer 12
-
£631 GBP
View
B
Retailer 13
-
£974 GBP
View
Most Expensive
NZ Jewellers
f5ac6e52-d8a4-4a96-88b2-c0bd632b2501 · Sep 30
£1,325 GBP
$1,783 USD
View
Price last confirmed 36 days ago
13 more retailers have this diamond
Prices start from £316 GBPSave up to £658 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
£316 GBP