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Marquise|Natural|GIA

0.77ct K SI1 Marquise Natural Diamond

VG • K/SI1 • GIA 3555866191

Certificate GIA 3555866191

Diamond specifications and retailer prices

From $591 AUD
As of November 5, 2026
Save $776 AUD (57%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,366 AUD at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.77ct natural marquise diamond

This 0.77ct natural marquise sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555866191. Listed at 9 retailers as of November 5, 2026, with prices from $591 to $1,366, a $776 spread on the same certified stone. Frank Darling lists it at $1,366. 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

0.77
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.25°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 3555866191
Dimensions8.76 × 4.74 × 3.12 mm
L/W Ratio1.85
Culet sizeNone
Top View
8.76 mm4.74 mm0.77 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555866191
Side View
Table 60.0%Crown 40.25°Girdle: MED-VTKPavilion 41.8°Culet: NoneDepth 65.8%

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 5
Current: $1,366 AUD|Low: $591 AUD|High: $1,505 AUD|Avg: $998 AUD|-9.2%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 3$591 AUD
Retailer 2$700 AUD
Retailer 8$745 AUD
Retailer 7$914 AUD
Retailer 4$966 AUD
Retailer 5$1,041 AUD
Retailer 6$1,144 AUD
Frank Darling$1,366 AUD

25 data points across 8 retailers

9 retailers$591 AUD to $1,366 AUD

A
Cheapest Retailer
-
$591 AUD
A
Retailer 2
-
$700 AUD
View
A
Retailer 3
-
$745 AUD
View
A
Retailer 4
-
$914 AUD
View
A
Retailer 5
-
$966 AUD
View
A
Retailer 6
-
$1,041 AUD
View
A
Retailer 7
-
$1,144 AUD
View
B+
Retailer 8
-
$1,176 AUD
View
Most Expensive
B+
Frank Darling
2668132HK · Nov 6
$1,366 AUD
$939 USD
View
8 more retailers have this diamond
Prices start from $591 AUDSave up to $776 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
0.77ct Marquise
$591 AUD