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Round|Natural|GIA

1.67ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 6535360651

Certificate GIA 6535360651

Diamond specifications and retailer prices

From $3,985 AUD
As of November 6, 2026
Save $4,761 AUD (54%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,745 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6535360651. Listed at 8 retailers as of November 5, 2026, with prices from $3,985 to $8,745, a $4,761 spread on the same certified stone. NZ Jewellers lists it at $8,745. 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6535360651
Dimensions7.55 × 7.58 × 4.71 mm
L/W Ratio1.00
Top View
7.55 mm7.58 mm1.67 ctM / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535360651
Side View
Table 58.0%CrownGirdlePavilionCuletDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $8,745 AUD|Low: $3,985 AUD|High: $8,745 AUD|Avg: $4,670 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$3,985 AUD
Retailer 6$4,097 AUD
Retailer 5$4,344 AUD
Retailer 8$4,389 AUD
Retailer 2$4,555 AUD
Retailer 3$4,861 AUD
Retailer 4$5,106 AUD
NZ Jewellers$8,745 AUD

40 data points across 8 retailers

8 retailers$3,985 AUD to $8,745 AUD

B+
Cheapest Retailer
-
$3,985 AUD
B+
Retailer 2
-
$4,097 AUD
View
B+
Retailer 3
-
$4,344 AUD
View
B+
Retailer 4
-
$4,389 AUD
View
B+
Retailer 5
-
$4,555 AUD
View
B+
Retailer 6
-
$4,861 AUD
View
B+
Retailer 7
-
$5,106 AUD
View
Most Expensive
B
NZ Jewellers
8fe92176-06c1-4b3f-8dfb-92bbcf6e3f83 · Nov 5
$8,745 AUD
$6,009 USD
View
7 more retailers have this diamond
Prices start from $3,985 AUDSave up to $4,761 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
$3,985 AUD