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Oval|Natural|GIA

1.78ct M SI2 Oval Natural Diamond

VG • M/SI2 • GIA 5563041937

Certificate GIA 5563041937

Diamond specifications and retailer prices

From $4,929 AUD
As of November 6, 2026
Save $2,115 AUD (30%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $7,045 AUD at Yorxs · As of November 6, 2026
View at Yorxs

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 stated by the retailer rather than the lab and certified by GIA 5563041937. Listed at 5 retailers as of November 6, 2026, with prices from $4,929 to $7,045, a $2,115 spread on the same certified stone. Yorxs lists it at $7,045. 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 (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5563041937
Dimensions9.78 × 6.96 × 3.95 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
9.78 mm6.96 mm1.78 ctM / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5563041937
Side View
Table 62.0%CrownGirdle: THN-STKPavilionCulet: SLGDepth 56.7%

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: $4,929 AUD|Low: $4,929 AUD|High: $8,403 AUD|Avg: $6,669 AUD|-17.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 6, 2026
Retailer 1$4,929 AUD
Retailer 4$5,618 AUD
Retailer 3$6,260 AUD
Retailer 2$6,475 AUD
Yorxs$7,045 AUD

44 data points across 5 retailers

5 retailers$4,929 AUD to $7,045 AUD

B+
Cheapest Retailer
-
$4,929 AUD
B
Retailer 2
-
$5,618 AUD
View
Retailer 3
-
$6,260 AUD
View
Price last confirmed 8 days ago
B
Retailer 4
-
$6,475 AUD
View
Most Expensive
B
Yorxs
5F9DE71E7 · Nov 6
$7,045 AUD
€4,610 EUR
View
4 more retailers have this diamond
Prices start from $4,929 AUDSave up to $2,115 AUD

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
$4,929 AUD