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Marquise|Natural|GIA

0.78ct F SI2 Marquise Natural Diamond

GD • F/SI2 • GIA 5131411226

Certificate GIA 5131411226

Diamond specifications and retailer prices

From $1,996 AUD
$1,399 USD
As of November 2, 2026
Save $1,059 AUD (35%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,056 AUD at 77 Diamonds · As of November 3, 2026
View at 77 Diamonds

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), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5131411226. Listed at 2 retailers as of November 2, 2026, with prices from $1,996 to $3,056, a $1,059 spread on the same certified stone. 77 Diamonds lists it at $3,056. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5131411226
Dimensions10.71 × 5.25 × 2.43 mm
L/W Ratio2.04
Top View
10.71 mm5.25 mm0.78 ctF / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 5131411226
Side View
Table 61.0%CrownGirdle: ThickPavilionCulet: SmallDepth 46.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $3,056 AUD|Low: $1,972 AUD|High: $3,059 AUD|Avg: $2,355 AUD|+2.3%
77 Diamonds
Retailer 2
Retailer 3
November 3, 2026
Retailer 3$1,996 AUD
Retailer 2$2,033 AUD
77 Diamonds$3,056 AUD

40 data points across 3 retailers

2 retailers$1,996 AUD to $3,056 AUD

B+
Cheapest Retailer
-
$1,996 AUD
$1,399 USD
Most Expensive
B
77 Diamonds
MQZD4XTM7GV · Nov 3
$3,056 AUD
£1,686 GBP
View
1 more retailer has this diamond
Prices start from $1,996 AUDSave up to $1,059 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+
0.78ct Marquise
$1,996 AUD