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Emerald|Natural|GIA

0.51ct F SI2 Emerald Natural Diamond

VG • F/SI2 • GIA 2427904999

Certificate GIA 2427904999

Diamond specifications and retailer prices

From $945 NZD
As of November 5, 2026
Save $1,232 NZD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,962 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 F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2427904999. Listed at 12 retailers as of November 4, 2026, with a 130% 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
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2427904999
Dimensions5.31 × 3.88 × 2.64 mm
L/W Ratio1.37
Top View
5.31 mm3.88 mm0.51 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 2427904999
Side View
Table 60.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 67.9%

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: Nov 5
Current: $2,962 NZD|Low: $945 NZD|High: $2,962 NZD|Avg: $1,409 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 9$945 NZD
Retailer 6$965 NZD
Retailer 7$1,017 NZD
Retailer 8$1,050 NZD
Retailer 10$1,090 NZD
Retailer 2$1,173 NZD
Retailer 5$1,183 NZD
Retailer 3$1,403 NZD
Retailer 4$2,177 NZD
NZ Jewellers$2,962 NZD

44 data points across 10 retailers

12 retailers$945 NZD to $2,177 NZD

A
Cheapest Retailer
-
$945 NZD
B+
Retailer 2
-
$965 NZD
View
Retailer 3
-
$1,017 NZD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$1,017 NZD
View
B+
Retailer 5
-
$1,090 NZD
View
B+
Retailer 6
-
$1,090 NZD
View
B+
Retailer 7
-
$1,173 NZD
View
B
Retailer 8
-
$1,182 NZD
View
B+
Retailer 9
-
$1,183 NZD
View
B
Retailer 10
-
$1,403 NZD
View
B
Retailer 11
-
$2,177 NZD
View
Most Expensive
NZ Jewellers
53721d7a-03df-485e-ba8b-bdb0145e505b · Nov 5
$2,962 NZD
$1,642 USD
View
Price under review
11 more retailers have this diamond
Prices start from $945 NZDSave up to $1,232 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
$945 NZD