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Round|Natural|GIA

1.60ct D IF Round Natural Diamond

EX • D/IF • GIA 6421241659

Certificate GIA 6421241659

Diamond specifications and retailer prices

From £19,005 GBP
€24,050 EUR
As of October 29, 2026
Save £15,858 GBP (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £48,128 GBP at Diamond Quarter · As of October 28, 2026
View at Diamond Quarter

About this 1.6ct natural round diamond

This 1.6ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6421241659. Listed at 12 retailers as of October 29, 2026, with a 83% 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

1.60
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6421241659
Dimensions7.69 × 7.66 × 4.52 mm
L/W Ratio1.00
Top View
7.69 mm7.66 mm1.60 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6421241659
Side View
Table 60.0%CrownGirdle: Sli. ThickPavilionCulet: NoneDepth 59.0%

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 29
Current: £22,347 GBP|Low: £18,673 GBP|High: £35,095 GBP|Avg: £23,454 GBP|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 5£19,005 GBP
Retailer 4£19,266 GBP
Retailer 7£20,922 GBP
Retailer 6£22,161 GBP
Retailer 1£22,347 GBP
Retailer 3£26,012 GBP
Retailer 2£34,863 GBP

36 data points across 7 retailers

12 retailers£19,005 GBP to £34,863 GBP

B+
Cheapest Retailer
-
£19,005 GBP
€24,050 EUR
A
Retailer 2
-
£19,266 GBP
$25,600 USD
View
B+
Retailer 3
-
£20,922 GBP
CA$38,612 CAD
View
B+
Retailer 4
-
£22,161 GBP
A$45,304 AUD
View
Price last confirmed 27 days ago
B+
Retailer 5
-
£22,347 GBP
View
B+
Retailer 6
-
£23,292 GBP
$30,950 USD
View
B+
Retailer 7
-
£23,292 GBP
$30,950 USD
View
B+
Retailer 8
-
£24,068 GBP
$31,980 USD
View
B+
Retailer 9
-
£24,189 GBP
$32,141 USD
View
B+
Retailer 10
-
£26,012 GBP
€32,918 EUR
View
B
Retailer 11
-
£34,863 GBP
View
Most Expensive
B
Diamond Quarter
1.6IFD64590CC7N · Oct 28
£48,128 GBP
View
Price under review
11 more retailers have this diamond
Prices start from £19,005 GBPSave up to £15,858 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
1.60ct Round
£19,005 GBP