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Round|Natural|IGI

0.70ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 815638380

Shape and cutting style on the report: Round brilliant

Certificate IGI 815638380

Diamond specifications and retailer prices

From £392 GBP
As of November 5, 2026
Save £835 GBP (68%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,227 GBP at NZ Jewellers · As of November 4, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 815638380. Listed at 14 retailers as of November 4, 2026, with prices from £392 to £1,227, a £835 spread on the same certified stone. NZ Jewellers lists it at £1,227. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 815638380
Dimensions5.70 × 5.75 × 3.48 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
5.70 mm5.75 mm0.70 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815638380
Side View
Table 57.0%Crown 33.3°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
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 5
Current: £1,227 GBP|Low: £392 GBP|High: £1,227 GBP|Avg: £572 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 3£392 GBP
Retailer 8£394 GBP
Retailer 11£421 GBP
Retailer 12£421 GBP
Retailer 4£452 GBP
Retailer 14£489 GBP
Retailer 7£490 GBP
Retailer 2£516 GBP
Retailer 6£525 GBP
Retailer 9£536 GBP
Retailer 13£548 GBP
Retailer 5£565 GBP
Retailer 10£903 GBP
NZ Jewellers£1,227 GBP

37 data points across 14 retailers

14 retailers£392 GBP to £1,227 GBP

A
Cheapest Retailer
-
£392 GBP
A
Retailer 2
-
£394 GBP
View
A
Retailer 3
-
£421 GBP
View
Retailer 4
-
£421 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£452 GBP
View
B+
Retailer 6
-
£489 GBP
View
B+
Retailer 7
-
£490 GBP
View
A
Retailer 8
-
£516 GBP
View
B+
Retailer 9
-
£525 GBP
View
B+
Retailer 10
-
£536 GBP
View
B+
Retailer 11
-
£548 GBP
View
B+
Retailer 12
-
£565 GBP
View
B
Retailer 13
-
£903 GBP
View
Most Expensive
C
NZ Jewellers
6b523835-2e3b-4821-936f-6e4287b31423 · Nov 4
£1,227 GBP
$1,651 USD
View
13 more retailers have this diamond
Prices start from £392 GBPSave up to £835 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
£392 GBP