Marquise|Natural|GIA

0.51ct E SI2 Marquise Natural Diamond

VG • E/SI2 • GIA 6561140322

Certificate GIA 6561140322

Diamond specifications and retailer prices

From $631 USD
As of November 6, 2026
Save $423 USD (40%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,054 USD at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6561140322. Listed at 9 retailers as of November 6, 2026, with prices from $631 to $1,054, a $423 spread on the same certified stone. Frank Darling lists it at $1,054. 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

0.51
Carat
E
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561140322
Dimensions7.58 × 4.09 × 2.61 mm
L/W Ratio1.85
Culet sizeNone
Top View
7.58 mm4.09 mm0.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561140322
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.9%

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 6
Current: $1,054 USD|Low: $630 USD|High: $1,085 USD|Avg: $842 USD|-2.9%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$631 USD
Retailer 3$634 USD
Retailer 5$645 USD
Retailer 7$740 USD
Retailer 6$819 USD
Retailer 2$878 USD
Retailer 4$925 USD
Retailer 9$945 USD
Frank Darling$1,054 USD

39 data points across 9 retailers

9 retailers$631 USD to $1,054 USD

A
Cheapest Retailer
-
$631 USD
A
Retailer 2
-
$634 USD
View
A
Retailer 3
-
$645 USD
View
A
Retailer 4
-
$740 USD
View
B+
Retailer 5
-
$819 USD
View
B+
Retailer 6
-
$878 USD
View
B+
Retailer 7
-
$925 USD
View
B+
Retailer 8
-
$945 USD
View
Most Expensive
B
Frank Darling
2679392HK · Nov 6
$1,054 USD
View
8 more retailers have this diamond
Prices start from $631 USDSave up to $423 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
0.51ct Marquise
$631 USD