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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 $3,774 SGD
As of November 6, 2026
Save $3,631 SGD (49%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,405 SGD 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 $3,774 to $7,405, a $3,631 spread on the same certified stone. NZ Jewellers lists it at $7,405. 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: $4,974 SGD|Low: $2,780 SGD|High: $6,866 SGD|Avg: $4,521 SGD|+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$2,780 SGD
Retailer 10$3,774 SGD
Retailer 4$3,965 SGD
Retailer 6$4,250 SGD
Retailer 3$4,251 SGD
Retailer 8$4,434 SGD
Retailer 5$4,905 SGD
Retailer 1$4,974 SGD
Retailer 7$5,057 SGD
Retailer 9$6,866 SGD

18 data points across 10 retailers

9 retailers$3,774 SGD to $7,405 SGD

B+
Cheapest Retailer
-
$3,774 SGD
B+
Retailer 2
-
$3,965 SGD
View
B
Retailer 3
-
$4,250 SGD
View
Retailer 4
-
$4,251 SGD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$4,414 SGD
View
B
Retailer 6
-
$4,434 SGD
View
B
Retailer 7
-
$4,905 SGD
View
B
Retailer 8
-
$4,974 SGD
View
Most Expensive
C
NZ Jewellers
873a39c3-eb57-4a1a-a547-6de8f25a720b · Nov 5
$7,405 SGD
$5,778 USD
View
8 more retailers have this diamond
Prices start from $3,774 SGDSave up to $3,631 SGD

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
$3,774 SGD