CaratHunter
Plans
Marquise|Natural|GIA

0.51ct E SI2 Marquise Natural Diamond

VG • E/SI2 • GIA 1569140315

Certificate GIA 1569140315

Diamond specifications and retailer prices

From $919 AUD
As of November 6, 2026
Save $604 AUD (40%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,523 AUD 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 1569140315. Listed at 8 retailers as of November 6, 2026, with prices from $919 to $1,523, a $604 spread on the same certified stone. Frank Darling lists it at $1,523. 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
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1569140315
Dimensions7.72 × 4.16 × 2.70 mm
L/W Ratio1.86
Culet sizeNone
Top View
7.72 mm4.16 mm0.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1569140315
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.8%

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 6
Current: $1,523 AUD|Low: $919 AUD|High: $1,549 AUD|Avg: $1,216 AUD|-1.7%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$919 AUD
Retailer 9$923 AUD
Retailer 8$943 AUD
Retailer 6$1,080 AUD
Retailer 4$1,194 AUD
Retailer 3$1,277 AUD
Retailer 2$1,347 AUD
Retailer 5$1,376 AUD
Frank Darling$1,523 AUD

30 data points across 9 retailers

8 retailers$919 AUD to $1,523 AUD

A
Cheapest Retailer
-
$919 AUD
Retailer 2
-
$943 AUD
View
Price last confirmed 19 days ago
A
Retailer 3
-
$1,080 AUD
View
B+
Retailer 4
-
$1,194 AUD
View
B+
Retailer 5
-
$1,277 AUD
View
B+
Retailer 6
-
$1,347 AUD
View
B+
Retailer 7
-
$1,376 AUD
View
Most Expensive
B
Frank Darling
2679391HK · Nov 6
$1,523 AUD
$1,066 USD
View
7 more retailers have this diamond
Prices start from $919 AUDSave up to $604 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
0.51ct Marquise
$919 AUD