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Round|Natural|GIA

1.70ct E IF Round Natural Diamond

EX • E/IF • GIA 5191570909

Certificate GIA 5191570909

Diamond specifications and retailer prices

From €20,318 EUR
$22,699 USD
As of October 30, 2026
Save €19,373 EUR (49%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €39,691 EUR at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

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 GIA 5191570909. Listed at 17 retailers as of October 29, 2026, with prices from €20,318 to €39,691, a €19,373 spread on the same certified stone. Diamond Quarter lists it at €39,691. 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 angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5191570909
Dimensions7.57 × 7.62 × 4.73 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.57 mm7.62 mm1.70 ctE / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5191570909
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.3%

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 30
Current: €20,384 EUR|Low: €20,261 EUR|High: €32,061 EUR|Avg: €24,055 EUR|-0.9%
Retailer 1
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
October 30, 2026
Retailer 12€20,318 EUR
Retailer 1€20,384 EUR
Retailer 14€20,873 EUR
Retailer 11€21,385 EUR
Retailer 2€21,728 EUR
Retailer 3€22,315 EUR
Retailer 6€22,812 EUR
Retailer 10€23,432 EUR
Retailer 4€24,175 EUR
Retailer 7€24,531 EUR
Retailer 13€25,105 EUR
Retailer 5€28,641 EUR
Retailer 9€29,545 EUR
Retailer 8€31,743 EUR

45 data points across 14 retailers

17 retailers€20,318 EUR to €39,691 EUR

A
Cheapest Retailer
-
€20,318 EUR
$22,699 USD
A
Retailer 2
-
€20,384 EUR
£17,931 GBP
View
Retailer 3
-
€20,873 EUR
A$35,877 AUD
View
Price last confirmed 26 days ago
A
Retailer 4
-
€21,385 EUR
$23,892 USD
View
Final sale: no returns
A
Retailer 5
-
€21,728 EUR
$24,275 USD
View
A
Retailer 6
-
€22,315 EUR
$24,931 USD
View
A
Retailer 7
-
€22,812 EUR
$25,485 USD
View
B+
Retailer 8
-
€23,432 EUR
$26,178 USD
View
B+
Retailer 9
-
€24,175 EUR
$27,009 USD
View
B+
Retailer 10
-
€24,531 EUR
View
B+
Retailer 11
-
€25,105 EUR
$28,048 USD
View
Retailer 12
-
€25,647 EUR
$28,653 USD
View
Price last confirmed 61 days ago
B+
Retailer 13
-
€28,641 EUR
$31,998 USD
View
Retailer 14
-
€29,260 EUR
$32,689 USD
View
Price last confirmed 62 days ago
B+
Retailer 15
-
€29,545 EUR
ZAR 533,237 ZAR
View
B+
Retailer 16
-
€31,743 EUR
£27,924 GBP
View
Most Expensive
B
Diamond Quarter
1.7IFE51092670N · Oct 29
€39,691 EUR
£34,916 GBP
View
16 more retailers have this diamond
Prices start from €20,318 EURSave up to €19,373 EUR

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
€20,318 EUR