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Round|Natural|IGI

1.60ct D SI2 Round Natural Diamond

EX • D/SI2 • IGI 670408693

Shape and cutting style on the report: Round brilliant

Certificate IGI 670408693

Diamond specifications and retailer prices

From $12,276 NZD
$6,919 USD
As of October 30, 2026
Save $7,625 NZD (38%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $25,857 NZD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.6ct natural round diamond

This 1.6ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 670408693. Listed at 12 retailers as of October 29, 2026, with a 62% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.60
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle33.8°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 670408693
Dimensions7.62 × 7.66 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.62 mm7.66 mm1.60 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 670408693
Side View
Table 60.0%Crown 33.8°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 59.2%

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: Oct 30
Current: $15,521 NZD|Low: $11,087 NZD|High: $21,806 NZD|Avg: $15,981 NZD|-4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 9$11,087 NZD
Retailer 5$12,276 NZD
Retailer 6$14,271 NZD
Retailer 4$14,502 NZD
Retailer 2$14,653 NZD
Retailer 1$15,521 NZD
Retailer 7$18,429 NZD
Retailer 8$18,989 NZD
Retailer 3$19,902 NZD

31 data points across 9 retailers

12 retailers$12,276 NZD to $19,902 NZD

A
Cheapest Retailer
-
$12,276 NZD
$6,919 USD
B+
Retailer 2
-
$14,502 NZD
$8,173 USD
View
B+
Retailer 3
-
$14,653 NZD
£6,503 GBP
View
Retailer 4
-
$15,459 NZD
$8,713 USD
View
Price last confirmed 48 days ago
Retailer 5
-
$15,459 NZD
$8,713 USD
View
Price last confirmed 30 days ago
B+
Retailer 6
-
$15,521 NZD
€8,331 EUR
View
Retailer 7
-
$15,697 NZD
$8,847 USD
View
Price last confirmed 32 days ago
Retailer 8
-
$17,839 NZD
$10,054 USD
View
Price last confirmed 47 days ago
Retailer 9
-
$17,839 NZD
$10,054 USD
View
Price last confirmed 32 days ago
B
Retailer 10
-
$19,902 NZD
£8,832 GBP
View
Retailer 11
-
$25,857 NZD
$14,573 USD
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
0489f0d7-1261-4fdd-b7ae-c25e8d768b7a · Sep 28
$25,857 NZD
$14,573 USD
View
Price last confirmed 34 days ago
11 more retailers have this diamond
Prices start from $12,276 NZDSave up to $7,625 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
1.60ct Round
$12,276 NZD