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Marquise|Natural|GIA

0.78ct F SI2 Marquise Natural Diamond

F/SI2 • GIA 1242089375

Certificate GIA 1242089375

Diamond specifications and retailer prices

From $1,298 AUD
$910 USD
As of November 1, 2026
Save $1,539 AUD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,838 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 0.78ct natural marquise diamond

This 0.78ct natural marquise sits in the just-under-one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included) and certified by GIA 1242089375. Listed at 9 retailers as of October 29, 2026, with prices from $1,298 to $2,838, a $1,539 spread on the same certified stone. MOH London lists it at $2,838. 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

0.78
Carat
F
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1242089375
Dimensions8.61 × 5.02 × 3.24 mm
L/W Ratio1.72
Girdle conditionFaceted
Culet sizeNone
Top View
8.61 mm5.02 mm0.78 ctF / SI2
OriginNatural
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 1242089375
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 64.6%

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: Nov 1
Current: $2,838 AUD|Low: $1,298 AUD|High: $2,856 AUD|Avg: $1,764 AUD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 6$1,298 AUD
Retailer 9$1,395 AUD
Retailer 10$1,410 AUD
Retailer 7$1,595 AUD
Retailer 4$1,712 AUD
Retailer 8$1,712 AUD
Retailer 2$1,758 AUD
Retailer 5$1,769 AUD
Retailer 3$2,160 AUD
MOH London$2,838 AUD

28 data points across 10 retailers

9 retailers$1,298 AUD to $2,838 AUD

A
Cheapest Retailer
-
$1,298 AUD
$910 USD
B+
Retailer 2
-
$1,410 AUD
$988 USD
View
B+
Retailer 3
-
$1,595 AUD
$1,118 USD
View
B+
Retailer 4
-
$1,712 AUD
$1,200 USD
View
B+
Retailer 5
-
$1,712 AUD
$1,200 USD
View
B+
Retailer 6
-
$1,758 AUD
£970 GBP
View
B+
Retailer 7
-
$1,769 AUD
$1,240 USD
View
B+
Retailer 8
-
$2,160 AUD
€1,442 EUR
View
Most Expensive
B
MOH London
560BBC953 · Oct 29
$2,838 AUD
£1,566 GBP
View
8 more retailers have this diamond
Prices start from $1,298 AUDSave up to $1,539 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.

A
0.78ct Marquise
$1,298 AUD