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Round|Natural|IGI

0.70ct M SI2 Round Natural Diamond

EX • M/SI2 • IGI 647428292

Shape and cutting style on the report: Round brilliant

Certificate IGI 647428292

Diamond specifications and retailer prices

From £186 GBP
As of October 31, 2026
Save £290 GBP (61%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,129 GBP at NZ Jewellers · As of September 15, 2026
View at NZ Jewellers

About this 0.7ct natural round diamond

This 0.7ct natural round sits in the half to three-quarter carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 647428292. Listed at 6 retailers as of October 31, 2026, with a 156% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 647428292
Dimensions5.62 × 5.65 × 3.50 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
5.62 mm5.65 mm0.70 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 647428292
Side View
Table 58.0%Crown 33.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.1%

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: £476 GBP|Low: £185 GBP|High: £477 GBP|Avg: £347 GBP|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 2£186 GBP
Retailer 5£317 GBP
Retailer 4£347 GBP
Retailer 3£356 GBP
Retailer 6£428 GBP
Retailer 1£476 GBP

41 data points across 6 retailers

6 retailers£186 GBP to £476 GBP

A
Cheapest Retailer
-
£186 GBP
Retailer 2
-
£294 GBP
View
Price last confirmed 53 days ago
Retailer 3
-
£340 GBP
View
Price last confirmed 53 days ago
B+
Retailer 4
-
£356 GBP
View
B
Retailer 5
-
£476 GBP
View
Most Expensive
NZ Jewellers
661e8371-7da1-4257-8f97-20a2b352cbcd · Sep 15
£1,129 GBP
$1,511 USD
View
Price last confirmed 52 days ago
5 more retailers have this diamond
Prices start from £186 GBPSave up to £290 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 Round
£186 GBP