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Emerald|Natural|GIA

0.51ct G SI2 Emerald Natural Diamond

VG • G/SI2 • GIA 1538682480

Certificate GIA 1538682480

Diamond specifications and retailer prices

From $637 NZD
As of November 4, 2026
Save $2,007 NZD (76%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,643 NZD at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1538682480. Listed at 7 retailers as of November 4, 2026, with prices from $637 to $2,643, a $2,007 spread on the same certified stone. NZ Jewellers lists it at $2,643. 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
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1538682480
Dimensions4.96 × 3.82 × 2.64 mm
L/W Ratio1.30
Culet sizeNone
Key to symbols
Cloud, Crystal, Needle
Top View
4.96 mm3.82 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1538682480
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.0%

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: $2,643 NZD|Low: $617 NZD|High: $2,800 NZD|Avg: $1,123 NZD|-5.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$637 NZD
Retailer 4$722 NZD
Retailer 8$799 NZD
Retailer 2$863 NZD
Retailer 5$891 NZD
Retailer 3$929 NZD
Retailer 7$1,149 NZD
NZ Jewellers$2,643 NZD

43 data points across 8 retailers

7 retailers$637 NZD to $2,643 NZD

A
Cheapest Retailer
-
$637 NZD
Final sale: no returns
A
Retailer 2
-
$722 NZD
View
A
Retailer 3
-
$863 NZD
View
A
Retailer 4
-
$891 NZD
View
A
Retailer 5
-
$929 NZD
View
B+
Retailer 6
-
$1,149 NZD
View
Most Expensive
B
NZ Jewellers
da3c8d15-a093-4049-bc51-ce6f784a1a25 · Nov 5
$2,643 NZD
$1,486 USD
View
6 more retailers have this diamond
Prices start from $637 NZDSave up to $2,007 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.

A
0.51ct Emerald
$637 NZD