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Heart|Natural|GIA

1.03ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 1156016999

Certificate GIA 1156016999

Diamond specifications and retailer prices

From $2,937 USD
As of November 6, 2026
Save $1,912 USD (39%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $4,849 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.03ct natural heart diamond

This 1.03ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1156016999. Listed at 2 retailers as of November 4, 2026, with prices from $2,937 to $4,849, a $1,912 spread on the same certified stone. MOH London lists it at $4,849. 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

1.03
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1156016999
Dimensions5.84 × 6.69 × 4.11 mm
L/W Ratio1.15
Key to symbols
Crystal, Indented Natural, Cloud, Feather, Pinpoint, Natural
Top View
5.84 mm6.69 mm1.03 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1156016999
Side View
Table 64.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 61.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $4,849 USD|Low: $2,725 USD|High: $4,920 USD|Avg: $3,294 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5$2,725 USD
Retailer 4$2,762 USD
Retailer 2$2,937 USD
Retailer 3$3,181 USD
MOH London$4,849 USD

37 data points across 5 retailers

2 retailers$2,937 USD to $4,849 USD

B
Cheapest Retailer
-
$2,937 USD
Most Expensive
C
MOH London
F1D8BED5E · Nov 4
$4,849 USD
£3,818 GBP
View
1 more retailer has this diamond
Prices start from $2,937 USDSave up to $1,912 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
1.03ct Heart
$2,937 USD