Round|Natural|GIA

1.67ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 6535360651

Certificate GIA 6535360651

Diamond specifications and retailer prices

From $2,738 USD
As of November 6, 2026
Save $3,271 USD (54%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,009 USD 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 $2,738 to $6,009, a $3,271 spread on the same certified stone. NZ Jewellers lists it at $6,009. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,009 USD|Low: $2,738 USD|High: $6,009 USD|Avg: $3,209 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$2,738 USD
Retailer 6$2,815 USD
Retailer 5$2,985 USD
Retailer 8$3,016 USD
Retailer 2$3,130 USD
Retailer 3$3,340 USD
Retailer 4$3,508 USD
NZ Jewellers$6,009 USD

40 data points across 8 retailers

8 retailers$2,738 USD to $6,009 USD

B+
Cheapest Retailer
-
$2,738 USD
B+
Retailer 2
-
$2,815 USD
View
B+
Retailer 3
-
$2,985 USD
View
B+
Retailer 4
-
$3,016 USD
View
B+
Retailer 5
-
$3,130 USD
View
B+
Retailer 6
-
$3,340 USD
View
B+
Retailer 7
-
$3,508 USD
View
Most Expensive
B
NZ Jewellers
8fe92176-06c1-4b3f-8dfb-92bbcf6e3f83 · Nov 5
$6,009 USD
View
7 more retailers have this diamond
Prices start from $2,738 USDSave up to $3,271 USD

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
$2,738 USD