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Round|Natural|GIA

1.58ct M SI1 Round Natural Diamond

VG • M/SI1 • GIA 1478296138

Certificate GIA 1478296138

Diamond specifications and retailer prices

From $5,854 AUD
As of November 4, 2026
Save $6,538 AUD (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $12,392 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.58ct natural round diamond

This 1.58ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 1478296138. Listed at 9 retailers as of November 4, 2026, with prices from $5,854 to $12,392, a $6,538 spread on the same certified stone. NZ Jewellers lists it at $12,392. 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

1.58
Carat
M
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1478296138
Dimensions7.28 × 7.26 × 4.67 mm
L/W Ratio1.00
Top View
7.28 mm7.26 mm1.58 ctM / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1478296138
Side View
Table 57.0%CrownGirdle: ThickPavilionCulet: NoneDepth 64.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $12,392 AUD|Low: $5,167 AUD|High: $12,392 AUD|Avg: $7,453 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 4$5,167 AUD
Retailer 7$5,854 AUD
Retailer 12$5,994 AUD
Retailer 6$6,335 AUD
Retailer 8$6,713 AUD
Retailer 9$6,713 AUD
Retailer 11$6,713 AUD
Retailer 10$7,745 AUD
Retailer 3$7,934 AUD
Retailer 5$8,320 AUD
Retailer 2$9,040 AUD
NZ Jewellers$12,392 AUD

26 data points across 12 retailers

9 retailers$5,854 AUD to $12,392 AUD

B
Cheapest Retailer
-
$5,854 AUD
B
Retailer 2
-
$6,335 AUD
View
B
Retailer 3
-
$6,713 AUD
View
Retailer 4
-
$6,713 AUD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$6,713 AUD
View
B
Retailer 6
-
$7,745 AUD
View
B
Retailer 7
-
$8,320 AUD
View
B
Retailer 8
-
$9,040 AUD
View
Most Expensive
C
NZ Jewellers
34de757d-7c3a-4b3b-a904-7ad3c7ae5d67 · Nov 5
$12,392 AUD
$8,675 USD
View
8 more retailers have this diamond
Prices start from $5,854 AUDSave up to $6,538 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
1.58ct Round
$5,854 AUD