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Heart|Natural|GIA

1.09ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 6545808854

Certificate GIA 6545808854

Diamond specifications and retailer prices

From €1,529 EUR
HK$13,400 HKD
As of November 2, 2026
Save €1,873 EUR (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €4,474 EUR at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.09ct natural heart diamond

This 1.09ct natural heart sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545808854. Listed at 16 retailers as of November 1, 2026, with a 123% 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

1.09
Carat
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.9°
OriginNatural
Grading LabGIA
CertificateGIA 6545808854
Dimensions5.97 × 7.10 × 4.23 mm
L/W Ratio1.19
Top View
5.97 mm7.10 mm1.09 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545808854
Side View
Table 60.0%CrownGirdle: STK-THKPavilion 40.9°Culet: NoneDepth 59.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: €1,529 EUR|Low: €1,506 EUR|High: €3,660 EUR|Avg: €2,147 EUR|-3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 1€1,529 EUR
Retailer 15€1,596 EUR
Retailer 8€1,648 EUR
Retailer 10€1,671 EUR
Retailer 13€1,782 EUR
Retailer 3€1,831 EUR
Retailer 5€1,841 EUR
Retailer 11€1,863 EUR
Retailer 2€2,053 EUR
Retailer 9€2,163 EUR
Retailer 6€2,333 EUR
Retailer 14€2,457 EUR
Retailer 7€2,548 EUR
Retailer 4€3,169 EUR
Retailer 12€3,403 EUR

26 data points across 15 retailers

16 retailers€1,529 EUR to €3,403 EUR

A
Cheapest Retailer
-
€1,529 EUR
HK$13,400 HKD
A
Retailer 2
-
€1,596 EUR
$1,790 USD
View
A
Retailer 3
-
€1,648 EUR
$1,848 USD
View
Final sale: no returns
A
Retailer 4
-
€1,671 EUR
$1,874 USD
View
A
Retailer 5
-
€1,782 EUR
View
A
Retailer 6
-
€1,831 EUR
$2,054 USD
View
A
Retailer 7
-
€1,841 EUR
$2,065 USD
View
A
Retailer 8
-
€1,863 EUR
$2,090 USD
View
B+
Retailer 9
-
€2,053 EUR
$2,303 USD
View
B+
Retailer 10
-
€2,163 EUR
£1,910 GBP
View
B+
Retailer 11
-
€2,333 EUR
$2,617 USD
View
B+
Retailer 12
-
€2,457 EUR
ZAR 44,517 ZAR
View
Retailer 13
-
€2,548 EUR
A$4,397 AUD
View
Price last confirmed 25 days ago
Retailer 14
-
€3,169 EUR
$3,554 USD
View
Price last confirmed 9 days ago
B
Retailer 15
-
€3,403 EUR
£3,005 GBP
View
Most Expensive
NZ Jewellers
9a7a49c4-62e5-4943-8152-8cd61c9a9d59 · Sep 25
€4,474 EUR
$5,018 USD
View
Price last confirmed 38 days ago
15 more retailers have this diamond
Prices start from €1,529 EURSave up to €1,873 EUR

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.

A
1.09ct Heart
€1,529 EUR