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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 $7,290 NZD
As of November 4, 2026
Save $8,142 NZD (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $15,432 NZD 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 $7,290 to $15,432, a $8,142 spread on the same certified stone. NZ Jewellers lists it at $15,432. 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: $15,432 NZD|Low: $6,434 NZD|High: $15,432 NZD|Avg: $9,282 NZD
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$6,434 NZD
Retailer 7$7,290 NZD
Retailer 12$7,464 NZD
Retailer 6$7,889 NZD
Retailer 8$8,359 NZD
Retailer 9$8,359 NZD
Retailer 11$8,359 NZD
Retailer 10$9,645 NZD
Retailer 3$9,880 NZD
Retailer 5$10,360 NZD
Retailer 2$11,257 NZD
NZ Jewellers$15,432 NZD

26 data points across 12 retailers

9 retailers$7,290 NZD to $15,432 NZD

B
Cheapest Retailer
-
$7,290 NZD
B
Retailer 2
-
$7,889 NZD
View
B
Retailer 3
-
$8,359 NZD
View
Retailer 4
-
$8,359 NZD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$8,359 NZD
View
B
Retailer 6
-
$9,645 NZD
View
B
Retailer 7
-
$10,360 NZD
View
B
Retailer 8
-
$11,257 NZD
View
Most Expensive
C
NZ Jewellers
34de757d-7c3a-4b3b-a904-7ad3c7ae5d67 · Nov 5
$15,432 NZD
$8,675 USD
View
8 more retailers have this diamond
Prices start from $7,290 NZDSave up to $8,142 NZD

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
$7,290 NZD