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Marquise|Natural|GIA

0.51ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 6565610229

Certificate GIA 6565610229

Diamond specifications and retailer prices

From $516 USD
As of November 4, 2026
Save $1,667 USD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,183 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565610229. Listed at 16 retailers as of November 4, 2026, with prices from $516 to $2,183, a $1,667 spread on the same certified stone. NZ Jewellers lists it at $2,183. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
E
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565610229
Dimensions8.47 × 4.12 × 2.46 mm
L/W Ratio2.06
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
8.47 mm4.12 mm0.51 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565610229
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 59.6%

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 4
Current: $2,183 USD|Low: $516 USD|High: $2,183 USD|Avg: $916 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 9$516 USD
Retailer 6$642 USD
Retailer 5$659 USD
Retailer 4$696 USD
Retailer 13$696 USD
Retailer 12$700 USD
Retailer 11$723 USD
Retailer 7$791 USD
Retailer 14$803 USD
Retailer 2$826 USD
Retailer 3$828 USD
Retailer 8$851 USD
Retailer 15$989 USD
Retailer 10$1,605 USD
NZ Jewellers$2,183 USD

14 data points across 15 retailers

16 retailers$516 USD to $2,183 USD

A
Cheapest Retailer
-
$516 USD
A
Retailer 2
-
$642 USD
View
Final sale: no returns
A
Retailer 3
-
$659 USD
View
A
Retailer 4
-
$659 USD
View
Retailer 5
-
$696 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$696 USD
View
A
Retailer 7
-
$700 USD
View
A
Retailer 8
-
$723 USD
View
B+
Retailer 9
-
$791 USD
View
B+
Retailer 10
-
$803 USD
View
A
Retailer 11
-
$826 USD
View
B+
Retailer 12
-
$828 USD
View
B+
Retailer 13
-
$851 USD
View
B+
Retailer 14
-
$989 USD
View
B
Retailer 15
-
$1,605 USD
View
Most Expensive
B
NZ Jewellers
56f5410c-3514-4df9-94bd-58e857d0a308 · Nov 5
$2,183 USD
View
15 more retailers have this diamond
Prices start from $516 USDSave up to $1,667 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
$516 USD