Heart|Natural|GIA

1.28ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 1459480283

Certificate GIA 1459480283

Diamond specifications and retailer prices

From $5,598 USD
As of November 4, 2026
Save $4,676 USD (46%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $10,274 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.28ct natural heart diamond

This 1.28ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1459480283. Listed at 10 retailers as of November 4, 2026, with prices from $5,598 to $10,274, a $4,676 spread on the same certified stone. MOH London lists it at $10,274. 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

1.28
Carat
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1459480283
Dimensions7.08 × 6.17 × 4.06 mm
L/W Ratio1.15
Girdle conditionFaceted
Top View
7.08 mm6.17 mm1.28 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1459480283
Side View
Table 68.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 65.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: $10,274 USD|Low: $5,379 USD|High: $10,427 USD|Avg: $7,768 USD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6$6,455 USD
Retailer 5$6,787 USD
Retailer 3$7,216 USD
Retailer 2$7,596 USD
Retailer 4$8,532 USD
MOH London$10,274 USD

42 data points across 6 retailers

10 retailers$5,598 USD to $10,274 USD

B
Cheapest Retailer
-
$5,598 USD
B
Retailer 2
-
$6,098 USD
View
B
Retailer 3
-
$6,455 USD
View
Final sale: no returns
B
Retailer 4
-
$6,475 USD
View
Retailer 5
-
$6,787 USD
View
Price last confirmed 16 days ago
B
Retailer 6
-
$7,153 USD
View
B
Retailer 7
-
$7,216 USD
View
B
Retailer 8
-
$7,596 USD
View
B
Retailer 9
-
$8,532 USD
View
Most Expensive
B
MOH London
60CB03D78 · Nov 4
$10,274 USD
£8,090 GBP
View
9 more retailers have this diamond
Prices start from $5,598 USDSave up to $4,676 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
1.28ct Heart
$5,598 USD