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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 $2,842 AUD
As of November 6, 2026
Save $590 AUD (17%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,432 AUD 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 $2,842 to $3,432, a $590 spread on the same certified stone. 77 Diamonds lists it at $3,432. 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: $3,432 AUD|Low: $2,842 AUD|High: $3,466 AUD|Avg: $3,122 AUD|+1.4%
77 Diamonds
Retailer 2
November 6, 2026
Retailer 2$2,842 AUD
77 Diamonds$3,432 AUD

35 data points across 2 retailers

2 retailers$2,842 AUD to $3,432 AUD

B
Cheapest Retailer
-
$2,842 AUD
Most Expensive
C
77 Diamonds
HSPUIFSAJKQUVCU · Nov 6
$3,432 AUD
£1,857 GBP
View
1 more retailer has this diamond
Prices start from $2,842 AUDSave up to $590 AUD

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
$2,842 AUD