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Round|Natural|IGI

1.20ct M SI1 Round Natural Diamond

EX • M/SI1 • IGI 425073127

Shape and cutting style on the report: Round brilliant

Certificate IGI 425073127

Diamond specifications and retailer prices

From $1,544 NZD
As of November 6, 2026
Save $3,264 NZD (68%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,808 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 425073127. Listed at 14 retailers as of November 5, 2026, with prices from $1,544 to $4,808, a $3,264 spread on the same certified stone. NZ Jewellers lists it at $4,808. 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

1.20
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40°
OriginNatural
Grading LabIGI
CertificateIGI 425073127
Dimensions6.76 × 6.80 × 4.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.76 mm6.80 mm1.20 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 425073127
Side View
Table 54.5%Crown 35.7°Girdle: MED-STKPavilion 40°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 6
Current: $4,808 NZD|Low: $1,544 NZD|High: $4,808 NZD|Avg: $2,359 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
Retailer 13
Retailer 14
November 6, 2026
Retailer 2$1,544 NZD
Retailer 3$1,887 NZD
Retailer 7$1,937 NZD
Retailer 5$1,971 NZD
Retailer 12$1,971 NZD
Retailer 6$2,048 NZD
Retailer 4$2,209 NZD
Retailer 13$2,215 NZD
Retailer 11$2,275 NZD
Retailer 10$2,289 NZD
Retailer 9$2,405 NZD
Retailer 8$2,677 NZD
Retailer 14$2,953 NZD
NZ Jewellers$4,808 NZD

38 data points across 14 retailers

14 retailers$1,544 NZD to $4,808 NZD

A
Cheapest Retailer
-
$1,544 NZD
B+
Retailer 2
-
$1,887 NZD
View
A
Retailer 3
-
$1,937 NZD
View
Retailer 4
-
$1,971 NZD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$1,971 NZD
View
B+
Retailer 6
-
$2,048 NZD
View
B+
Retailer 7
-
$2,209 NZD
View
B+
Retailer 8
-
$2,215 NZD
View
B+
Retailer 9
-
$2,275 NZD
View
B+
Retailer 10
-
$2,289 NZD
View
B+
Retailer 11
-
$2,405 NZD
View
B+
Retailer 12
-
$2,677 NZD
View
B+
Retailer 13
-
$2,953 NZD
View
Most Expensive
B
NZ Jewellers
8721241d-33f3-4f5b-921a-9a0e1ce9782c · Nov 5
$4,808 NZD
$2,703 USD
View
13 more retailers have this diamond
Prices start from $1,544 NZDSave up to $3,264 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
1.20ct Round
$1,544 NZD