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Emerald|Natural|GIA

0.51ct F SI1 Emerald Natural Diamond

EX • F/SI1 • GIA 6551104400

Certificate GIA 6551104400

Diamond specifications and retailer prices

From $713 AUD
As of November 4, 2026
Save $1,070 AUD (60%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,426 AUD at NZ Jewellers · As of October 23, 2026
View at NZ Jewellers

About this 0.51ct natural emerald diamond

This 0.51ct natural emerald sits in the half to three-quarter carat band, graded F 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 6551104400. Listed at 16 retailers as of November 4, 2026, with a 150% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551104400
Dimensions5.44 × 3.97 × 2.54 mm
L/W Ratio1.37
Top View
5.44 mm3.97 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551104400
Side View
Table 70.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.9%

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 4
Current: $2,426 AUD|Low: $654 AUD|High: $2,426 AUD|Avg: $1,129 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 4$713 AUD
Retailer 13$773 AUD
Retailer 3$833 AUD
Retailer 10$833 AUD
Retailer 12$893 AUD
Retailer 2$944 AUD
Retailer 7$960 AUD
Retailer 11$969 AUD
Retailer 5$1,057 AUD
Retailer 6$1,146 AUD
Retailer 8$1,193 AUD
Retailer 9$1,783 AUD
NZ Jewellers$2,426 AUD

30 data points across 13 retailers

16 retailers$713 AUD to $1,783 AUD

A
Cheapest Retailer
-
$713 AUD
Final sale: no returns
A
Retailer 2
-
$773 AUD
View
B+
Retailer 3
-
$833 AUD
View
Retailer 4
-
$833 AUD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$893 AUD
View
Retailer 6
-
$893 AUD
View
Price last confirmed 14 days ago
B+
Retailer 7
-
$944 AUD
View
B+
Retailer 8
-
$960 AUD
View
B+
Retailer 9
-
$969 AUD
View
B+
Retailer 10
-
$1,057 AUD
View
B+
Retailer 11
-
$1,146 AUD
View
Retailer 12
-
$1,163 AUD
View
Price last confirmed 35 days ago
B+
Retailer 13
-
$1,193 AUD
View
B
Retailer 14
-
$1,783 AUD
View
Retailer 15
-
$2,426 AUD
View
Price under review
Most Expensive
NZ Jewellers
a5b4e83d-9984-4621-a5e4-939c3e55263a · Oct 23
$2,426 AUD
$1,698 USD
View
Price under review
15 more retailers have this diamond
Prices start from $713 AUDSave up to $1,070 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 Emerald
$713 AUD