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Round|Natural|IGI

1.70ct E IF Round Natural Diamond

EX • E/IF • IGI 809661039

Shape and cutting style on the report: Round brilliant

Certificate IGI 809661039

Diamond specifications and retailer prices

From £9,493 GBP
€12,040 EUR
As of October 29, 2026
Save £6,652 GBP (41%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £16,145 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 809661039. Listed at 20 retailers as of October 29, 2026, with prices from £9,493 to £16,145, a £6,652 spread on the same certified stone. MOH London lists it at £16,145. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 809661039
Dimensions7.50 × 7.61 × 4.74 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.50 mm7.61 mm1.70 ctE / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 809661039
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°CuletDepth 62.7%

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: Oct 29
Current: £16,145 GBP|Low: £9,328 GBP|High: £16,252 GBP|Avg: £11,986 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 10£9,493 GBP
Retailer 4£9,954 GBP
Retailer 3£10,434 GBP
Retailer 8£10,876 GBP
Retailer 2£11,061 GBP
Retailer 9£11,129 GBP
Retailer 6£11,350 GBP
Retailer 5£12,885 GBP
Retailer 11£14,567 GBP
Retailer 7£14,814 GBP
MOH London£16,145 GBP

36 data points across 11 retailers

20 retailers£9,493 GBP to £16,145 GBP

A
Cheapest Retailer
-
£9,493 GBP
€12,040 EUR
A
Retailer 2
-
£9,954 GBP
₹1,262,422 INR
View
A
Retailer 3
-
£10,434 GBP
$13,895 USD
View
A
Retailer 4
-
£10,876 GBP
$14,484 USD
View
Final sale: no returns
A
Retailer 5
-
£11,061 GBP
View
A
Retailer 6
-
£11,129 GBP
$14,820 USD
View
A
Retailer 7
-
£11,350 GBP
$15,114 USD
View
A
Retailer 8
-
£12,106 GBP
$16,122 USD
View
Price last confirmed 30 days ago
A
Retailer 9
-
£12,106 GBP
$16,122 USD
View
A
Retailer 10
-
£12,296 GBP
$16,374 USD
View
Price last confirmed 28 days ago
A
Retailer 11
-
£12,296 GBP
$16,374 USD
View
Price last confirmed 9 days ago
A
Retailer 12
-
£12,296 GBP
$16,374 USD
View
A
Retailer 13
-
£12,768 GBP
$17,003 USD
View
Price last confirmed 30 days ago
A
Retailer 14
-
£12,768 GBP
$17,003 USD
View
Price last confirmed 8 days ago
A
Retailer 15
-
£12,885 GBP
€16,342 EUR
View
A
Retailer 16
-
£14,567 GBP
$19,398 USD
View
Price last confirmed 23 days ago
A
Retailer 17
-
£14,567 GBP
$19,398 USD
View
Price last confirmed 26 days ago
A
Retailer 18
-
£14,567 GBP
$19,398 USD
View
Price last confirmed 9 days ago
A
Retailer 19
-
£14,814 GBP
ZAR 318,699 ZAR
View
Most Expensive
A
MOH London
423BC80F1 · Oct 29
£16,145 GBP
View
19 more retailers have this diamond
Prices start from £9,493 GBPSave up to £6,652 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
1.70ct Round
£9,493 GBP