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Heart|Natural|GIA

1.05ct E SI1 Heart Natural Diamond

GD • E/SI1 • GIA 1563575344

Certificate GIA 1563575344

Diamond specifications and retailer prices

From $2,973 AUD
As of November 6, 2026
Save $585 AUD (16%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,558 AUD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.05ct natural heart diamond

This 1.05ct natural heart sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1563575344. Listed at 4 retailers as of November 5, 2026, with prices from $2,973 to $3,558, a $585 spread on the same certified stone. Blue Nile lists it at $3,558. 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

1.05
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1563575344
Dimensions6.37 × 7.17 × 3.99 mm
L/W Ratio1.13
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Needle
Top View
6.37 mm7.17 mm1.05 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1563575344
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 55.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,558 AUD|Low: $2,973 AUD|High: $3,688 AUD|Avg: $3,335 AUD|-3.5%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3$2,973 AUD
Retailer 2$3,234 AUD
Retailer 4$3,414 AUD
Blue Nile$3,558 AUD

10 data points across 4 retailers

4 retailers$2,973 AUD to $3,558 AUD

A
Cheapest Retailer
-
$2,973 AUD
B+
Retailer 2
-
$3,234 AUD
View
B+
Retailer 3
-
$3,414 AUD
View
Most Expensive
B+
Blue Nile
30501500 · Nov 5
$3,558 AUD
$2,445 USD
View
3 more retailers have this diamond
Prices start from $2,973 AUDSave up to $585 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.

A
1.05ct Heart
$2,973 AUD