CaratHunter
Plans
Round|Natural|GIA

1.64ct M IF Round Natural Diamond

EX • M/IF • GIA 6401476425

Certificate GIA 6401476425

Diamond specifications and retailer prices

From £2,853 GBP
As of November 1, 2026
Save £1,621 GBP (36%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £6,390 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.64ct natural round diamond

This 1.64ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6401476425. Listed at 12 retailers as of November 1, 2026, with a 57% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
M
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6401476425
Dimensions7.70 × 7.66 × 4.57 mm
L/W Ratio1.01
Top View
7.70 mm7.66 mm1.64 ctM / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6401476425
Side View
Table 58.0%CrownGirdle: MED-MEDPavilionCulet: NoneDepth 59.5%

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: Nov 1
Current: £6,390 GBP|Low: £2,853 GBP|High: £6,390 GBP|Avg: £3,892 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4£2,853 GBP
Retailer 5£3,323 GBP
Retailer 7£3,323 GBP
Retailer 9£3,323 GBP
Retailer 6£3,514 GBP
Retailer 8£3,834 GBP
Retailer 3£3,879 GBP
Retailer 2£4,474 GBP
NZ Jewellers£6,390 GBP

27 data points across 9 retailers

12 retailers£2,853 GBP to £4,474 GBP

A
Cheapest Retailer
-
£2,853 GBP
A
Retailer 2
-
£2,924 GBP
View
A
Retailer 3
-
£3,147 GBP
View
Retailer 4
-
£3,323 GBP
View
Price last confirmed 8 days ago
Retailer 5
-
£3,323 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
£3,323 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£3,514 GBP
View
Retailer 8
-
£3,834 GBP
View
Price last confirmed 10 days ago
B+
Retailer 9
-
£3,834 GBP
View
B+
Retailer 10
-
£3,879 GBP
View
B+
Retailer 11
-
£4,474 GBP
View
Most Expensive
NZ Jewellers
caa3ee22-6ea0-4fbf-87d5-cd9e7b606bdf · Oct 30
£6,390 GBP
$8,600 USD
View
Price last confirmed 7 days ago
11 more retailers have this diamond
Prices start from £2,853 GBPSave up to £1,621 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
1.64ct Round
£2,853 GBP