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Emerald|Natural|GIA

0.51ct G SI1 Emerald Natural Diamond

EX • G/SI1 • GIA 2557408109

Certificate GIA 2557408109

Diamond specifications and retailer prices

From $712 CAD
$510 USD
As of October 29, 2026
Save $1,083 CAD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,424 CAD at NZ Jewellers · As of October 30, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557408109. Listed at 14 retailers as of October 29, 2026, with a 152% 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
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557408109
Dimensions5.15 × 3.72 × 2.62 mm
L/W Ratio1.38
Culet sizeNone
Top View
5.15 mm3.72 mm0.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557408109
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 70.4%

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: Oct 29
Current: $2,424 CAD|Low: $654 CAD|High: $2,424 CAD|Avg: $1,119 CAD
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
October 30, 2026
Retailer 4$712 CAD
Retailer 14$772 CAD
Retailer 3$833 CAD
Retailer 9$833 CAD
Retailer 13$891 CAD
Retailer 7$952 CAD
Retailer 12$968 CAD
Retailer 8$976 CAD
Retailer 5$1,048 CAD
Retailer 11$1,148 CAD
Retailer 6$1,162 CAD
Retailer 2$1,193 CAD
Retailer 10$1,795 CAD
NZ Jewellers$2,424 CAD

32 data points across 14 retailers

14 retailers$712 CAD to $1,795 CAD

A
Cheapest Retailer
-
$712 CAD
$510 USD
Final sale: no returns
B+
Retailer 2
-
$772 CAD
$553 USD
View
B+
Retailer 3
-
$833 CAD
$596 USD
View
B+
Retailer 4
-
$833 CAD
$596 USD
View
B+
Retailer 5
-
$891 CAD
$638 USD
View
B+
Retailer 6
-
$952 CAD
£536 GBP
View
B+
Retailer 7
-
$968 CAD
£546 GBP
View
B+
Retailer 8
-
$976 CAD
£550 GBP
View
B+
Retailer 9
-
$1,048 CAD
$750 USD
View
B+
Retailer 10
-
$1,148 CAD
€783 EUR
View
Retailer 11
-
$1,162 CAD
A$1,280 AUD
View
Price last confirmed 27 days ago
B
Retailer 12
-
$1,193 CAD
ZAR 13,796 ZAR
View
B
Retailer 13
-
$1,795 CAD
£1,012 GBP
View
Most Expensive
NZ Jewellers
99b69c18-8084-4b64-a681-0e04de0ab1e0 · Oct 30
$2,424 CAD
$1,735 USD
View
Price under review
13 more retailers have this diamond
Prices start from $712 CADSave up to $1,083 CAD

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
$712 CAD