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Round|Natural|IGI

1.68ct M SI1 Round Natural Diamond

EX • M/SI1 • IGI 587305957

Shape and cutting style on the report: Round brilliant

Certificate IGI 587305957

Diamond specifications and retailer prices

From $4,546 NZD
As of November 5, 2026
Save $5,044 NZD (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $9,590 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.68ct natural round diamond

This 1.68ct 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 IGI 587305957. Listed at 9 retailers as of November 5, 2026, with prices from $4,546 to $9,590, a $5,044 spread on the same certified stone. NZ Jewellers lists it at $9,590. 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

1.68
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 587305957
Dimensions7.57 × 7.63 × 4.70 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.57 mm7.63 mm1.68 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 587305957
Side View
Table 58.0%Crown 35.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $9,590 NZD|Low: $4,080 NZD|High: $9,590 NZD|Avg: $5,337 NZD|+1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11$4,080 NZD
Retailer 3$4,210 NZD
Retailer 8$4,546 NZD
Retailer 7$4,587 NZD
Retailer 10$4,587 NZD
Retailer 9$4,798 NZD
Retailer 2$4,993 NZD
Retailer 6$5,293 NZD
Retailer 4$5,598 NZD
Retailer 5$5,691 NZD
NZ Jewellers$9,590 NZD

40 data points across 11 retailers

9 retailers$4,546 NZD to $9,590 NZD

A
Cheapest Retailer
-
$4,546 NZD
A
Retailer 2
-
$4,587 NZD
View
Retailer 3
-
$4,587 NZD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$4,798 NZD
View
A
Retailer 5
-
$4,993 NZD
View
B+
Retailer 6
-
$5,293 NZD
View
B+
Retailer 7
-
$5,598 NZD
View
B+
Retailer 8
-
$5,691 NZD
View
Most Expensive
B
NZ Jewellers
30d04372-2935-4b9d-9ee4-2c92503d828d · Nov 5
$9,590 NZD
$5,316 USD
View
8 more retailers have this diamond
Prices start from $4,546 NZDSave up to $5,044 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.

A
1.68ct Round
$4,546 NZD