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Heart|Natural|GIA

1.09ct L SI1 Heart Natural Diamond

EX • L/SI1 • GIA 6157607133

Certificate GIA 6157607133

Diamond specifications and retailer prices

From €1,749 EUR
As of November 6, 2026
Save €363 EUR (17%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €2,112 EUR at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.09ct natural heart diamond

This 1.09ct natural heart sits in the classic one-carat band, graded L 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 6157607133. Listed at 2 retailers as of November 6, 2026, with prices from €1,749 to €2,112, a €363 spread on the same certified stone. 77 Diamonds lists it at €2,112. 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
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6157607133
Dimensions6.79 × 7.31 × 3.56 mm
L/W Ratio1.08
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional twinning wisps are not shown. Surface graining is not shown.
Key to symbols
Twinning Wisp, Indented Natural
Top View
6.79 mm7.31 mm1.09 ctL / SI1
OriginNatural
CutExcellent
PolishGood
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6157607133
Side View
Table 55.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 48.7%

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: €2,112 EUR|Low: €1,749 EUR|High: €2,133 EUR|Avg: €1,921 EUR|+1.4%
77 Diamonds
Retailer 2
November 6, 2026
Retailer 2€1,749 EUR
77 Diamonds€2,112 EUR

35 data points across 2 retailers

2 retailers€1,749 EUR to €2,112 EUR

B
Cheapest Retailer
-
€1,749 EUR
Most Expensive
C
77 Diamonds
HSPUIFSAJKQUVCU · Nov 6
€2,112 EUR
£1,857 GBP
View
1 more retailer has this diamond
Prices start from €1,749 EURSave up to €363 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.

B
1.09ct Heart
€1,749 EUR