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Oval|Natural|IGI

1.78ct M SI2 Oval Natural Diamond

VG • M/SI2 • IGI 534245983

Shape and cutting style on the report: Oval modified brilliant

Certificate IGI 534245983

Diamond specifications and retailer prices

From $5,312 NZD
As of November 6, 2026
Save $5,110 NZD (49%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,423 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.78ct natural oval diamond

This 1.78ct natural oval sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 534245983. Listed at 9 retailers as of November 5, 2026, with prices from $5,312 to $10,423, a $5,110 spread on the same certified stone. NZ Jewellers lists it at $10,423. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.78
Carat
M
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
Crown angle35.4°
Pavilion angle30.9°
OriginNatural
Grading LabIGI
CertificateIGI 534245983
Dimensions8.31 × 6.04 × 4.35 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizeNone
Top View
8.31 mm6.04 mm1.78 ctM / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateIGI 534245983
Side View
Table 56.0%Crown 35.4°Girdle: MED-VTKPavilion 30.9°Culet: NoneDepth 72.0%

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 6
Current: $7,001 NZD|Low: $3,913 NZD|High: $9,663 NZD|Avg: $6,363 NZD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 2$3,913 NZD
Retailer 10$5,312 NZD
Retailer 4$5,581 NZD
Retailer 6$5,982 NZD
Retailer 3$5,984 NZD
Retailer 8$6,241 NZD
Retailer 5$6,904 NZD
Retailer 1$7,001 NZD
Retailer 7$7,118 NZD
Retailer 9$9,663 NZD

18 data points across 10 retailers

9 retailers$5,312 NZD to $10,423 NZD

B+
Cheapest Retailer
-
$5,312 NZD
B+
Retailer 2
-
$5,581 NZD
View
B
Retailer 3
-
$5,982 NZD
View
Retailer 4
-
$5,984 NZD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$6,213 NZD
View
B
Retailer 6
-
$6,241 NZD
View
B
Retailer 7
-
$6,904 NZD
View
B
Retailer 8
-
$7,001 NZD
View
Most Expensive
C
NZ Jewellers
873a39c3-eb57-4a1a-a547-6de8f25a720b · Nov 5
$10,423 NZD
$5,778 USD
View
8 more retailers have this diamond
Prices start from $5,312 NZDSave up to $5,110 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+
1.78ct Oval
$5,312 NZD