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Emerald|Natural|GIA

0.51ct E SI1 Emerald Natural Diamond

VG • E/SI1 • GIA 6512726209

Certificate GIA 6512726209

Diamond specifications and retailer prices

From $1,277 NZD
$717 USD
As of October 29, 2026
Save $1,609 NZD (56%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,006 NZD at NZ Jewellers · As of October 27, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6512726209. Listed at 14 retailers as of October 26, 2026, with a 126% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6512726209
Dimensions5.21 × 3.87 × 2.63 mm
L/W Ratio1.35
Top View
5.21 mm3.87 mm0.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512726209
Side View
Table 64.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,536 NZD|Low: $1,326 NZD|High: $2,917 NZD|Avg: $1,822 NZD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 8$1,326 NZD
Retailer 2$1,478 NZD
Retailer 4$1,478 NZD
Retailer 1$1,536 NZD
Retailer 3$1,812 NZD
Retailer 7$1,921 NZD
Retailer 6$1,967 NZD
Retailer 5$2,885 NZD

37 data points across 8 retailers

14 retailers$1,277 NZD to $2,885 NZD

B+
Cheapest Retailer
-
$1,277 NZD
$717 USD
B+
Retailer 2
-
$1,277 NZD
$717 USD
View
B+
Retailer 3
-
$1,326 NZD
$745 USD
View
B
Retailer 4
-
$1,474 NZD
$828 USD
View
B
Retailer 5
-
$1,478 NZD
£653 GBP
View
B+
Retailer 6
-
$1,478 NZD
$830 USD
View
B+
Retailer 7
-
$1,513 NZD
$850 USD
View
B+
Retailer 8
-
$1,536 NZD
£679 GBP
View
B
Retailer 9
-
$1,711 NZD
$961 USD
View
B
Retailer 10
-
$1,812 NZD
€969 EUR
View
Retailer 11
-
$1,921 NZD
A$1,660 AUD
View
Price last confirmed 26 days ago
B
Retailer 12
-
$1,967 NZD
ZAR 17,847 ZAR
View
B
Retailer 13
-
$2,885 NZD
£1,276 GBP
View
Most Expensive
NZ Jewellers
5d109806-f6ce-487c-9a7e-f1de22c1bbaa · Oct 27
$4,006 NZD
$2,250 USD
View
Price under review
13 more retailers have this diamond
Prices start from $1,277 NZDSave up to $1,609 NZD

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.

B+
0.51ct Emerald
$1,277 NZD