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1.64ct E IF Round Natural Diamond

EX • E/IF • GIA 5222650249

Shape and cutting style on the report: Round brilliant

Certificate GIA 5222650249

Diamond specifications and retailer prices

From £19,975 GBP
$26,600 USD
As of October 28, 2026
Save £10,882 GBP (35%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £30,857 GBP at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.64ct natural round diamond

This 1.64ct 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 5222650249. Listed at 4 retailers as of October 28, 2026, with prices from £19,975 to £30,857, a £10,882 spread on the same certified stone. Diamond Quarter lists it at £30,857. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5222650249
Dimensions7.77 × 7.80 × 4.55 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.77 mm7.80 mm1.64 ctE / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5222650249
Side View
Table 59.0%Crown 32°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 58.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £18,671 GBP|Low: £13,160 GBP|High: £31,903 GBP|Avg: £19,575 GBP|-3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
September 1, 2026
Retailer 3£13,160 GBP
Retailer 1£18,671 GBP
Retailer 2£18,967 GBP
Retailer 9£19,975 GBP
Retailer 10£19,975 GBP
Retailer 7£20,130 GBP
Retailer 5£20,533 GBP
Retailer 8£20,643 GBP
Retailer 4£21,149 GBP
Retailer 11£21,894 GBP
Retailer 6£31,903 GBP

51 data points across 11 retailers

4 retailers£19,975 GBP to £30,857 GBP

B+
Cheapest Retailer
-
£19,975 GBP
$26,600 USD
B+
Retailer 2
-
£19,975 GBP
$26,600 USD
View
B+
Retailer 3
-
£20,643 GBP
$27,490 USD
View
Most Expensive
B
Diamond Quarter
1.64IFE52493321N · Oct 29
£30,857 GBP
View
3 more retailers have this diamond
Prices start from £19,975 GBPSave up to £10,882 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.

B+
1.64ct Round
£19,975 GBP