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Heart|Natural|GIA

0.91ct J SI1 Heart Natural Diamond

GD • J/SI1 • GIA 1206422162

Certificate GIA 1206422162

Diamond specifications and retailer prices

From $3,815 AUD
£2,105 GBP
As of November 2, 2026
Save $364 AUD (9%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,377 AUD at Torres Jewel Co · As of September 30, 2026
View at Torres Jewel Co

About this 0.91ct natural heart diamond

This 0.91ct natural heart sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1206422162. Listed at 3 retailers as of November 2, 2026, with a relatively tight 10% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.91
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1206422162
Dimensions6.69 × 7.00 × 2.73 mm
L/W Ratio1.05
Key to symbols
Twinning Wisp
Top View
6.69 mm7.00 mm0.91 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1206422162
Side View
Table 66.0%CrownGirdle: VTN-ETKPavilionCulet: NoneDepth 38.9%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 2
Current: $4,179 AUD|Low: $3,669 AUD|High: $4,377 AUD|Avg: $4,078 AUD|+3.2%
Retailer 1
Retailer 2
Torres Jewel Co
November 2, 2026
Retailer 2$3,815 AUD
Retailer 1$4,179 AUD
Torres Jewel Co$4,377 AUD

39 data points across 3 retailers

3 retailers$3,815 AUD to $4,179 AUD

C
Cheapest Retailer
-
$3,815 AUD
£2,105 GBP
C
Retailer 2
-
$4,179 AUD
€2,789 EUR
View
Most Expensive
Torres Jewel Co
25380628 · Sep 30
$4,377 AUD
View
Price last confirmed 34 days ago
2 more retailers have this diamond
Prices start from $3,815 AUDSave up to $364 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.

C
0.91ct Heart
$3,815 AUD