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Heart|Natural|GIA

1.64ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 2528975077

Certificate GIA 2528975077

Diamond specifications and retailer prices

From £2,819 GBP
$3,783 USD
As of November 1, 2026
Save £2,933 GBP (51%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £5,752 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.64ct natural heart diamond

This 1.64ct natural heart sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2528975077. Listed at 19 retailers as of October 30, 2026, with prices from £2,819 to £5,752, a £2,933 spread on the same certified stone. NZ Jewellers lists it at £5,752. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.64
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2528975077
Dimensions7.76 × 7.26 × 4.48 mm
L/W Ratio1.07
Top View
7.76 mm7.26 mm1.64 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2528975077
Side View
Table 57.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.7%

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: Nov 1
Current: £3,177 GBP|Low: £2,794 GBP|High: £5,323 GBP|Avg: £3,406 GBP|-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
November 2, 2026
Retailer 5£2,819 GBP
Retailer 2£2,905 GBP
Retailer 4£2,952 GBP
Retailer 10£3,048 GBP
Retailer 12£3,130 GBP
Retailer 1£3,177 GBP
Retailer 3£3,302 GBP
Retailer 13£3,302 GBP
Retailer 7£3,378 GBP
Retailer 11£3,522 GBP
Retailer 6£3,735 GBP
Retailer 9£4,058 GBP
Retailer 8£5,259 GBP

34 data points across 13 retailers

19 retailers£2,819 GBP to £5,752 GBP

B+
Cheapest Retailer
-
£2,819 GBP
$3,783 USD
B+
Retailer 2
-
£2,905 GBP
$3,899 USD
View
B+
Retailer 3
-
£2,952 GBP
$3,962 USD
View
B+
Retailer 4
-
£3,048 GBP
$4,090 USD
View
Final sale: no returns
Retailer 5
-
£3,112 GBP
SGD 5,643 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£3,130 GBP
$4,200 USD
View
B+
Retailer 7
-
£3,177 GBP
View
B+
Retailer 8
-
£3,275 GBP
$4,395 USD
View
B+
Retailer 9
-
£3,302 GBP
$4,431 USD
View
B+
Retailer 10
-
£3,302 GBP
$4,431 USD
View
B+
Retailer 11
-
£3,302 GBP
$4,431 USD
View
B+
Retailer 12
-
£3,378 GBP
View
B
Retailer 13
-
£3,471 GBP
$4,658 USD
View
Retailer 14
-
£3,522 GBP
A$7,271 AUD
View
Price last confirmed 24 days ago
B
Retailer 15
-
£3,735 GBP
€4,774 EUR
View
B
Retailer 16
-
£3,809 GBP
$5,112 USD
View
B
Retailer 17
-
£4,058 GBP
ZAR 87,984 ZAR
View
B
Retailer 18
-
£5,259 GBP
View
Most Expensive
C
NZ Jewellers
1c568664-3667-46cb-8b10-3955c74db087 · Oct 30
£5,752 GBP
$7,719 USD
View
18 more retailers have this diamond
Prices start from £2,819 GBPSave up to £2,933 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 Heart
£2,819 GBP