Heart|Natural|GIA

1.18ct K SI1 Heart Natural Diamond

VG • K/SI1 • GIA 1433774555

Certificate GIA 1433774555

Diamond specifications and retailer prices

From $4,702 USD
As of November 5, 2026
Save $295 USD (6%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $4,997 USD at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

About this 1.18ct natural heart diamond

This 1.18ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1433774555. Listed at 2 retailers as of November 5, 2026, with a relatively tight 6% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.18
Carat
K
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1433774555
Dimensions6.55 × 7.52 × 4.17 mm
L/W Ratio1.15
Top View
6.55 mm7.52 mm1.18 ctK / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 1433774555
Side View
Table 65.0%CrownGirdle: VTN-THKPavilionCulet: Very SmallDepth 55.5%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 5
Current: $4,997 USD|Low: $4,702 USD|High: $5,065 USD|Avg: $4,871 USD|+1.0%
77 Diamonds
Retailer 2
November 5, 2026
Retailer 2$4,702 USD
77 Diamonds$4,997 USD

38 data points across 2 retailers

2 retailers$4,702 USD to $4,997 USD

C
Cheapest Retailer
-
$4,702 USD
Most Expensive
C
77 Diamonds
HSJCXHKRYV4 · Nov 5
$4,997 USD
£3,935 GBP
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1 more retailer has this diamond
Prices start from $4,702 USDSave up to $295 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.

C
1.18ct Heart
$4,702 USD