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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 £17,045 GBP
$22,699 USD
As of October 28, 2026
Save £16,253 GBP (49%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £33,299 GBP 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 28, 2026, with prices from £17,045 to £33,299, a £16,253 spread on the same certified stone. Diamond Quarter lists it at £33,299. 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 28
Current: £17,049 GBP|Low: £16,998 GBP|High: £26,898 GBP|Avg: £20,085 GBP|-1.4%
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 29, 2026
Retailer 12£17,045 GBP
Retailer 1£17,049 GBP
Retailer 14£17,512 GBP
Retailer 11£17,941 GBP
Retailer 2£18,229 GBP
Retailer 3£18,721 GBP
Retailer 6£19,138 GBP
Retailer 10£19,658 GBP
Retailer 4£20,282 GBP
Retailer 8£20,468 GBP
Retailer 13£21,062 GBP
Retailer 5£24,028 GBP
Retailer 9£24,786 GBP
Retailer 7£26,631 GBP

45 data points across 14 retailers

17 retailers£17,045 GBP to £33,299 GBP

A
Cheapest Retailer
-
£17,045 GBP
$22,699 USD
A
Retailer 2
-
£17,049 GBP
View
A
Retailer 3
-
£17,512 GBP
A$35,877 AUD
View
Price last confirmed 25 days ago
A
Retailer 4
-
£17,941 GBP
$23,892 USD
View
Final sale: no returns
A
Retailer 5
-
£18,229 GBP
$24,275 USD
View
A
Retailer 6
-
£18,721 GBP
$24,931 USD
View
A
Retailer 7
-
£19,138 GBP
$25,485 USD
View
B+
Retailer 8
-
£19,658 GBP
$26,178 USD
View
B+
Retailer 9
-
£20,282 GBP
$27,009 USD
View
B+
Retailer 10
-
£20,468 GBP
€25,959 EUR
View
B+
Retailer 11
-
£21,062 GBP
$28,048 USD
View
B+
Retailer 12
-
£21,516 GBP
$28,653 USD
View
Price last confirmed 60 days ago
B+
Retailer 13
-
£24,028 GBP
$31,998 USD
View
B+
Retailer 14
-
£24,547 GBP
$32,689 USD
View
Price last confirmed 61 days ago
B+
Retailer 15
-
£24,786 GBP
ZAR 533,237 ZAR
View
B+
Retailer 16
-
£26,631 GBP
View
Most Expensive
B
Diamond Quarter
1.7IFE51092670N · Oct 29
£33,299 GBP
View
16 more retailers have this diamond
Prices start from £17,045 GBPSave up to £16,253 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
£17,045 GBP