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Round|Natural|GIA

1.67ct N SI1 Round Natural Diamond

EX • N/SI1 • GIA 6371892547

Certificate GIA 6371892547

Diamond specifications and retailer prices

From $6,151 AUD
As of November 5, 2026
Save $5,677 AUD (48%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $11,828 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.67ct natural round diamond

This 1.67ct natural round sits in the one-and-a-half to two carat band, graded N colour (tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6371892547. Listed at 6 retailers as of November 5, 2026, with prices from $6,151 to $11,828, a $5,677 spread on the same certified stone. NZ Jewellers lists it at $11,828. 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

1.67
Carat
N
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6371892547
Dimensions7.52 × 7.57 × 4.75 mm
L/W Ratio1.01
Top View
7.52 mm7.57 mm1.67 ctN / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6371892547
Side View
Table 58.0%Crown 35°GirdlePavilion 41.4°Culet: NoneDepth 63.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $11,828 AUD|Low: $6,151 AUD|High: $11,828 AUD|Avg: $7,882 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3$6,151 AUD
Retailer 4$6,151 AUD
Retailer 6$6,151 AUD
Retailer 7$7,097 AUD
Retailer 2$7,634 AUD
Retailer 5$9,918 AUD
NZ Jewellers$11,828 AUD

20 data points across 7 retailers

6 retailers$6,151 AUD to $11,828 AUD

B
Cheapest Retailer
-
$6,151 AUD
B
Retailer 2
-
$6,151 AUD
View
B
Retailer 3
-
$7,097 AUD
View
B
Retailer 4
-
$7,634 AUD
View
C
Retailer 5
-
$9,918 AUD
View
Most Expensive
C
NZ Jewellers
b33f4637-7235-4008-b19e-f1a41a8084ff · Nov 5
$11,828 AUD
$8,280 USD
View
5 more retailers have this diamond
Prices start from $6,151 AUDSave up to $5,677 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
1.67ct Round
$6,151 AUD