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Heart|Natural|GIA

1.63ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 6432239384

Certificate GIA 6432239384

Diamond specifications and retailer prices

From $17,193 AUD
$12,049 USD
As of November 1, 2026
Save $8,927 AUD (34%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $28,795 AUD at MOH London · As of November 2, 2026
View at MOH London

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6432239384. Listed at 8 retailers as of October 30, 2026, with a 52% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6432239384
Dimensions6.93 × 8.13 × 4.81 mm
L/W Ratio1.17
Top View
6.93 mm8.13 mm1.63 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6432239384
Side View
Table 60.0%CrownGirdlePavilionCulet: NoneDepth 59.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $28,795 AUD|Low: $17,193 AUD|High: $29,141 AUD|Avg: $21,760 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 3$17,193 AUD
Retailer 8$18,437 AUD
Retailer 4$19,667 AUD
Retailer 2$19,877 AUD
Retailer 5$19,974 AUD
Retailer 7$20,741 AUD
Retailer 9$22,701 AUD
Retailer 6$26,119 AUD
MOH London$28,795 AUD

42 data points across 9 retailers

8 retailers$17,193 AUD to $26,119 AUD

B
Cheapest Retailer
-
$17,193 AUD
$12,049 USD
B
Retailer 2
-
$19,667 AUD
$13,783 USD
View
B
Retailer 3
-
$19,877 AUD
£10,969 GBP
View
B
Retailer 4
-
$19,974 AUD
$13,998 USD
View
B
Retailer 5
-
$20,741 AUD
$14,536 USD
View
B
Retailer 6
-
$22,269 AUD
$15,606 USD
View
B
Retailer 7
-
$26,119 AUD
$18,305 USD
View
Most Expensive
MOH London
15102E006 · Nov 2
$28,795 AUD
£15,890 GBP
View
Price under review
7 more retailers have this diamond
Prices start from $17,193 AUDSave up to $8,927 AUD

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
1.63ct Heart
$17,193 AUD