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Marquise|Natural|GIA

0.51ct E SI1 Marquise Natural Diamond

ID • E/SI1 • GIA 2544730685

Certificate GIA 2544730685

Diamond specifications and retailer prices

From $824 AUD
As of November 6, 2026
Save $2,587 AUD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,411 AUD 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2544730685. Listed at 13 retailers as of November 5, 2026, with prices from $824 to $3,411, a $2,587 spread on the same certified stone. NZ Jewellers lists it at $3,411. 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
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2544730685
Dimensions8.39 × 4.15 × 2.57 mm
L/W Ratio2.02
Top View
8.39 mm4.15 mm0.51 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2544730685
Side View
Table 59.0%CrownGirdle: UND-UNDPavilionCulet: NoneDepth 61.9%

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: $3,411 AUD|Low: $824 AUD|High: $3,411 AUD|Avg: $1,389 AUD
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
November 6, 2026
Retailer 2$824 AUD
Retailer 5$990 AUD
Retailer 11$1,003 AUD
Retailer 12$1,089 AUD
Retailer 7$1,116 AUD
Retailer 3$1,126 AUD
Retailer 10$1,130 AUD
Retailer 13$1,236 AUD
Retailer 4$1,256 AUD
Retailer 6$1,299 AUD
Retailer 9$1,537 AUD
Retailer 8$1,990 AUD
NZ Jewellers$3,411 AUD

33 data points across 13 retailers

13 retailers$824 AUD to $3,411 AUD

A
Cheapest Retailer
-
$824 AUD
A
Retailer 2
-
$990 AUD
View
A
Retailer 3
-
$1,003 AUD
View
Final sale: no returns
A
Retailer 4
-
$1,089 AUD
View
A
Retailer 5
-
$1,116 AUD
View
A
Retailer 6
-
$1,126 AUD
View
A
Retailer 7
-
$1,130 AUD
View
B+
Retailer 8
-
$1,236 AUD
View
B+
Retailer 9
-
$1,256 AUD
View
B+
Retailer 10
-
$1,299 AUD
View
B+
Retailer 11
-
$1,537 AUD
View
B
Retailer 12
-
$1,990 AUD
View
Most Expensive
B
NZ Jewellers
891262ae-d934-4997-a518-e966a78ffeb0 · Nov 5
$3,411 AUD
$2,388 USD
View
12 more retailers have this diamond
Prices start from $824 AUDSave up to $2,587 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
$824 AUD