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Heart|Natural|GIA

1.64ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 7458610995

Certificate GIA 7458610995

Diamond specifications and retailer prices

From £4,814 GBP
$6,450 USD
As of October 31, 2026
Save £515 GBP (10%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £5,329 GBP at Jared · As of October 30, 2026
View at Jared

About this 1.64ct natural heart diamond

This 1.64ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7458610995. Listed at 4 retailers as of October 30, 2026, with a relatively tight 11% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.64
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7458610995
Dimensions7.08 × 8.04 × 4.63 mm
L/W Ratio1.14
Top View
7.08 mm8.04 mm1.64 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7458610995
Side View
Table 59.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 57.6%

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 31
Current: £5,329 GBP|Low: £4,814 GBP|High: £6,338 GBP|Avg: £5,692 GBP|-9.4%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
September 26, 2026
Retailer 2£4,814 GBP
Retailer 3£5,157 GBP
Retailer 4£5,157 GBP
Jared£5,329 GBP
Retailer 5£6,337 GBP

11 data points across 5 retailers

4 retailers£4,814 GBP to £5,329 GBP

B+
Cheapest Retailer
-
£4,814 GBP
$6,450 USD
B+
Retailer 2
-
£5,157 GBP
$6,910 USD
View
B+
Retailer 3
-
£5,157 GBP
$6,910 USD
View
Most Expensive
B+
Jared
146927898 · Oct 30
£5,329 GBP
$7,140 USD
View
3 more retailers have this diamond
Prices start from £4,814 GBPSave up to £515 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
£4,814 GBP