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Round|Natural|IGI

1.70ct I I1 Round Natural Diamond

EX • I/I1 • IGI 457087702

Shape and cutting style on the report: Round brilliant

Certificate IGI 457087702

Diamond specifications and retailer prices

From $5,606 NZD
$3,154 USD
As of November 1, 2026
Save $6,420 NZD (53%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $12,025 NZD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI 457087702. Listed at 8 retailers as of November 1, 2026, with prices from $5,606 to $12,025, a $6,420 spread on the same certified stone. NZ Jewellers lists it at $12,025. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
I
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 457087702
Dimensions7.61 × 7.65 × 4.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
7.61 mm7.65 mm1.70 ctI / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 457087702
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.5%

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 1
Current: $12,025 NZD|Low: $4,040 NZD|High: $12,064 NZD|Avg: $6,333 NZD|+8.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9$4,088 NZD
Retailer 3$5,606 NZD
Retailer 4$6,254 NZD
Retailer 6$6,315 NZD
Retailer 5$6,332 NZD
Retailer 8$6,494 NZD
Retailer 7$7,216 NZD
Retailer 2$7,855 NZD
NZ Jewellers$12,025 NZD

40 data points across 9 retailers

8 retailers$5,606 NZD to $12,025 NZD

B+
Cheapest Retailer
-
$5,606 NZD
$3,154 USD
B+
Retailer 2
-
$6,254 NZD
$3,519 USD
View
B+
Retailer 3
-
$6,315 NZD
$3,553 USD
View
B+
Retailer 4
-
$6,332 NZD
$3,563 USD
View
B+
Retailer 5
-
$6,494 NZD
$3,654 USD
View
B+
Retailer 6
-
$7,216 NZD
$4,060 USD
View
B+
Retailer 7
-
$7,855 NZD
€4,209 EUR
View
Most Expensive
B
NZ Jewellers
9c7ce137-fd30-4470-8cea-9432465dd86b · Nov 2
$12,025 NZD
$6,766 USD
View
7 more retailers have this diamond
Prices start from $5,606 NZDSave up to $6,420 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.

B+
1.70ct Round
$5,606 NZD