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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 $17,976 AUD
€12,040 EUR
As of October 29, 2026
Save $12,595 AUD (41%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $30,571 AUD 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 $17,976 to $30,571, a $12,595 spread on the same certified stone. MOH London lists it at $30,571. 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: $30,571 AUD|Low: $17,662 AUD|High: $30,773 AUD|Avg: $22,696 AUD|-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$17,976 AUD
Retailer 4$18,848 AUD
Retailer 3$19,757 AUD
Retailer 8$20,595 AUD
Retailer 2$20,945 AUD
Retailer 9$21,073 AUD
Retailer 6$21,491 AUD
Retailer 5$24,399 AUD
Retailer 11$27,582 AUD
Retailer 7$28,050 AUD
MOH London$30,571 AUD

36 data points across 11 retailers

20 retailers$17,976 AUD to $30,571 AUD

A
Cheapest Retailer
-
$17,976 AUD
€12,040 EUR
A
Retailer 2
-
$18,848 AUD
₹1,262,422 INR
View
A
Retailer 3
-
$19,757 AUD
$13,895 USD
View
A
Retailer 4
-
$20,595 AUD
$14,484 USD
View
Final sale: no returns
A
Retailer 5
-
$20,945 AUD
£11,599 GBP
View
A
Retailer 6
-
$21,073 AUD
$14,820 USD
View
A
Retailer 7
-
$21,491 AUD
$15,114 USD
View
A
Retailer 8
-
$22,924 AUD
$16,122 USD
View
Price last confirmed 29 days ago
A
Retailer 9
-
$22,924 AUD
$16,122 USD
View
A
Retailer 10
-
$23,282 AUD
$16,374 USD
View
Price last confirmed 28 days ago
A
Retailer 11
-
$23,282 AUD
$16,374 USD
View
Price last confirmed 9 days ago
A
Retailer 12
-
$23,282 AUD
$16,374 USD
View
A
Retailer 13
-
$24,177 AUD
$17,003 USD
View
Price last confirmed 30 days ago
A
Retailer 14
-
$24,177 AUD
$17,003 USD
View
Price last confirmed 8 days ago
A
Retailer 15
-
$24,399 AUD
€16,342 EUR
View
A
Retailer 16
-
$27,582 AUD
$19,398 USD
View
Price last confirmed 23 days ago
A
Retailer 17
-
$27,582 AUD
$19,398 USD
View
Price last confirmed 26 days ago
A
Retailer 18
-
$27,582 AUD
$19,398 USD
View
Price last confirmed 8 days ago
A
Retailer 19
-
$28,050 AUD
ZAR 318,699 ZAR
View
Most Expensive
A
MOH London
423BC80F1 · Oct 29
$30,571 AUD
£16,929 GBP
View
19 more retailers have this diamond
Prices start from $17,976 AUDSave up to $12,595 AUD

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
$17,976 AUD