Heart|Natural|GIA

1.63ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 6432239384

Certificate GIA 6432239384

Diamond specifications and retailer prices

From $12,049 USD
As of November 1, 2026
Save $6,256 USD (34%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $20,180 USD at MOH London · As of November 1, 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $20,180 USD|Low: $12,049 USD|High: $20,423 USD|Avg: $15,248 USD|-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$12,049 USD
Retailer 8$12,921 USD
Retailer 4$13,783 USD
Retailer 2$13,930 USD
Retailer 5$13,998 USD
Retailer 7$14,536 USD
Retailer 9$15,910 USD
Retailer 6$18,305 USD
MOH London$20,180 USD

43 data points across 9 retailers

8 retailers$12,049 USD to $18,305 USD

B
Cheapest Retailer
-
$12,049 USD
B
Retailer 2
-
$13,783 USD
View
B
Retailer 3
-
$13,930 USD
£10,969 GBP
View
B
Retailer 4
-
$13,998 USD
View
B
Retailer 5
-
$14,536 USD
View
B
Retailer 6
-
$15,606 USD
View
B
Retailer 7
-
$18,305 USD
View
Most Expensive
MOH London
15102E006 · Nov 1
$20,180 USD
£15,890 GBP
View
Price under review
7 more retailers have this diamond
Prices start from $12,049 USDSave up to $6,256 USD

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
$12,049 USD