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Emerald|Natural|GIA

0.51ct E SI1 Emerald Natural Diamond

EX • E/SI1 • GIA 2566017480

Certificate GIA 2566017480

Diamond specifications and retailer prices

From $938 AUD
$659 USD
As of October 23, 2026
Save $325 AUD (26%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,837 AUD at NZ Jewellers · As of October 20, 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 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 2566017480. Listed at 16 retailers as of October 23, 2026, with a 35% 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566017480
Dimensions5.57 × 3.72 × 2.46 mm
L/W Ratio1.50
Girdle conditionPolished
Top View
5.57 mm3.72 mm0.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566017480
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.2%

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: Oct 23
Current: $2,837 AUD|Low: $611 AUD|High: $2,921 AUD|Avg: $1,252 AUD|-2.9%
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
Retailer 16
October 23, 2026
Retailer 7$747 AUD
Retailer 11$826 AUD
Retailer 12$901 AUD
Retailer 10$908 AUD
Retailer 5$923 AUD
Retailer 16$938 AUD
Retailer 14$946 AUD
Retailer 13$1,097 AUD
Retailer 9$1,160 AUD
Retailer 6$1,210 AUD
Retailer 2$1,263 AUD
Retailer 3$1,320 AUD
Retailer 15$1,381 AUD
Retailer 8$1,400 AUD
Retailer 4$2,101 AUD
NZ Jewellers$2,837 AUD

20 data points across 16 retailers

16 retailers$938 AUD to $1,263 AUD

A
Retailer 1
-
$747 AUD
HK$4,100 HKD
Price last confirmed 7 days ago
A
Retailer 2
-
$901 AUD
$633 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$908 AUD
€608 EUR
View
Price last confirmed 6 days ago
A
Retailer 4
-
$923 AUD
SGD 876 SGD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$938 AUD
$659 USD
View
A
Retailer 6
-
$946 AUD
£523 GBP
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$1,097 AUD
£607 GBP
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$1,160 AUD
$815 USD
View
Price last confirmed 5 days ago
B+
Retailer 9
-
$1,210 AUD
$850 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$1,224 AUD
£677 GBP
View
Price last confirmed 33 days ago
B+
Retailer 11
-
$1,263 AUD
€845 EUR
View
B+
Retailer 12
-
$1,320 AUD
$927 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$1,381 AUD
ZAR 15,670 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 14
-
$1,400 AUD
View
Price last confirmed 24 days ago
B
Retailer 15
-
$2,101 AUD
£1,162 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
NZ Jewellers
0935f67e-5a7e-4757-bb0e-c6b24f30efcd · Oct 20
$2,837 AUD
$1,993 USD
View
Price under review
15 more retailers have this diamond
Prices start from $938 AUDSave up to $325 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
$938 AUD