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Emerald|Natural|GIA

0.51ct F SI1 Emerald Natural Diamond

EX • F/SI1 • GIA 2548820291

Certificate GIA 2548820291

Diamond specifications and retailer prices

From $765 NZD
As of November 4, 2026
Save $1,775 NZD (70%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,453 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2548820291. Listed at 16 retailers as of November 4, 2026, with a 232% 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2548820291
Dimensions5.36 × 3.74 × 2.58 mm
L/W Ratio1.43
Top View
5.36 mm3.74 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2548820291
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: 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: $806 NZD|Low: $765 NZD|High: $2,572 NZD|Avg: $1,463 NZD|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$765 NZD
Retailer 1$806 NZD
Retailer 3$1,331 NZD
Retailer 6$1,443 NZD
Retailer 2$1,614 NZD
Retailer 8$1,654 NZD
Retailer 5$1,699 NZD
Retailer 4$2,540 NZD

36 data points across 8 retailers

16 retailers$765 NZD to $2,540 NZD

A
Cheapest Retailer
-
$765 NZD
Final sale: no returns
A
Retailer 2
-
$806 NZD
View
B+
Retailer 3
-
$1,043 NZD
View
B+
Retailer 4
-
$1,100 NZD
View
B+
Retailer 5
-
$1,185 NZD
View
Retailer 6
-
$1,185 NZD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$1,270 NZD
View
B+
Retailer 8
-
$1,331 NZD
View
B+
Retailer 9
-
$1,338 NZD
View
Retailer 10
-
$1,423 NZD
View
Price last confirmed 41 days ago
B+
Retailer 11
-
$1,443 NZD
View
B
Retailer 12
-
$1,614 NZD
View
Retailer 13
-
$1,654 NZD
View
Price last confirmed 33 days ago
B
Retailer 14
-
$1,699 NZD
View
B
Retailer 15
-
$2,540 NZD
View
Most Expensive
NZ Jewellers
01ec37c2-3384-4ca3-8c6e-77a1e4fc563d · Nov 5
$3,453 NZD
$1,914 USD
View
Price under review
15 more retailers have this diamond
Prices start from $765 NZDSave up to $1,775 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
$765 NZD