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Emerald|Natural|GIA

0.51ct F SI2 Emerald Natural Diamond

GD • F/SI2 • GIA 6512909895

Certificate GIA 6512909895

Diamond specifications and retailer prices

From $794 NZD
As of November 6, 2026
Save $1,638 NZD (67%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,305 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6512909895. Listed at 18 retailers as of November 2, 2026, with a 206% 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6512909895
Dimensions5.55 × 3.72 × 2.51 mm
L/W Ratio1.49
Top View
5.55 mm3.72 mm0.51 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512909895
Side View
Table 64.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.5%

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 6
Current: $1,275 NZD|Low: $794 NZD|High: $2,462 NZD|Avg: $1,304 NZD|+3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 4$794 NZD
Retailer 10$972 NZD
Retailer 3$1,010 NZD
Retailer 9$1,073 NZD
Retailer 5$1,095 NZD
Retailer 2$1,135 NZD
Retailer 1$1,275 NZD
Retailer 8$1,319 NZD
Retailer 6$1,550 NZD
Retailer 7$2,432 NZD

40 data points across 10 retailers

18 retailers$794 NZD to $2,432 NZD

A
Cheapest Retailer
-
$794 NZD
B+
Retailer 2
-
$877 NZD
View
B+
Retailer 3
-
$972 NZD
View
Final sale: no returns
B+
Retailer 4
-
$998 NZD
View
B+
Retailer 5
-
$1,010 NZD
View
B+
Retailer 6
-
$1,053 NZD
View
B+
Retailer 7
-
$1,073 NZD
View
B+
Retailer 8
-
$1,095 NZD
View
Retailer 9
-
$1,135 NZD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$1,135 NZD
View
B
Retailer 11
-
$1,216 NZD
View
B
Retailer 12
-
$1,275 NZD
View
B
Retailer 13
-
$1,284 NZD
View
B
Retailer 14
-
$1,290 NZD
View
Retailer 15
-
$1,319 NZD
View
Price last confirmed 8 days ago
B
Retailer 16
-
$1,550 NZD
View
B
Retailer 17
-
$2,432 NZD
View
Most Expensive
NZ Jewellers
e950a76f-aa33-43c7-99a3-953b33b460e1 · Nov 5
$3,305 NZD
$1,832 USD
View
Price under review
17 more retailers have this diamond
Prices start from $794 NZDSave up to $1,638 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
$794 NZD