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Heart|Natural|GIA

1.63ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 6351567071

Certificate GIA 6351567071

Diamond specifications and retailer prices

From £2,444 GBP
₹312,322 INR
As of November 2, 2026
Save £3,165 GBP (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £5,609 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.63ct natural heart diamond

This 1.63ct natural heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6351567071. Listed at 13 retailers as of October 30, 2026, with prices from £2,444 to £5,609, a £3,165 spread on the same certified stone. NZ Jewellers lists it at £5,609. 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

1.63
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceVery Strong
OriginNatural
Grading LabGIA
CertificateGIA 6351567071
Dimensions8.31 × 7.13 × 4.84 mm
L/W Ratio1.17
Top View
8.31 mm7.13 mm1.63 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceVery Strong
CertificateGIA 6351567071
Side View
Table 61.0%CrownGirdle: MED-MEDPavilionCulet: NoneDepth 58.2%

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 2
Current: £2,444 GBP|Low: £2,439 GBP|High: £5,189 GBP|Avg: £3,540 GBP|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 1£2,444 GBP
Retailer 6£3,219 GBP
Retailer 3£3,293 GBP
Retailer 5£3,434 GBP
Retailer 2£3,642 GBP
Retailer 4£5,128 GBP

40 data points across 6 retailers

13 retailers£2,444 GBP to £5,609 GBP

A
Cheapest Retailer
-
£2,444 GBP
₹312,322 INR
A
Retailer 2
-
£2,832 GBP
$3,801 USD
View
A
Retailer 3
-
£3,055 GBP
$4,100 USD
View
A
Retailer 4
-
£3,219 GBP
$4,320 USD
View
A
Retailer 5
-
£3,219 GBP
$4,320 USD
View
A
Retailer 6
-
£3,219 GBP
$4,320 USD
View
A
Retailer 7
-
£3,293 GBP
View
A
Retailer 8
-
£3,343 GBP
$4,486 USD
View
Retailer 9
-
£3,434 GBP
A$7,089 AUD
View
Price last confirmed 23 days ago
A
Retailer 10
-
£3,642 GBP
€4,654 EUR
View
B+
Retailer 11
-
£3,715 GBP
$4,985 USD
View
B+
Retailer 12
-
£5,128 GBP
View
Most Expensive
B
NZ Jewellers
f6b7fb72-3c8f-4f14-bdc9-cf0d769c8b9b · Oct 30
£5,609 GBP
$7,527 USD
View
12 more retailers have this diamond
Prices start from £2,444 GBPSave up to £3,165 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
1.63ct Heart
£2,444 GBP