Marquise|Natural|GIA

0.77ct K SI1 Marquise Natural Diamond

VG • K/SI1 • GIA 3555866191

Certificate GIA 3555866191

Diamond specifications and retailer prices

From $406 USD
As of November 5, 2026
Save $533 USD (57%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $939 USD 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 $406 to $939, a $533 spread on the same certified stone. Frank Darling lists it at $939. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $939 USD|Low: $406 USD|High: $1,034 USD|Avg: $685 USD|-9.2%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 3$406 USD
Retailer 2$481 USD
Retailer 8$512 USD
Retailer 7$628 USD
Retailer 4$664 USD
Retailer 5$715 USD
Retailer 6$786 USD
Frank Darling$939 USD

25 data points across 8 retailers

9 retailers$406 USD to $939 USD

A
Cheapest Retailer
-
$406 USD
A
Retailer 2
-
$481 USD
View
A
Retailer 3
-
$512 USD
View
A
Retailer 4
-
$628 USD
View
A
Retailer 5
-
$664 USD
View
A
Retailer 6
-
$715 USD
View
A
Retailer 7
-
$786 USD
View
B+
Retailer 8
-
$808 USD
View
Most Expensive
B+
Frank Darling
2668132HK · Nov 6
$939 USD
View
8 more retailers have this diamond
Prices start from $406 USDSave up to $533 USD

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
$406 USD