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Emerald|Natural|GIA

0.51ct F SI1 Emerald Natural Diamond

EX • F/SI1 • GIA 6551104400

Certificate GIA 6551104400

Diamond specifications and retailer prices

From $888 NZD
As of November 4, 2026
Save $1,332 NZD (60%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,021 NZD at NZ Jewellers · As of October 23, 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 6551104400. Listed at 16 retailers as of November 4, 2026, with a 150% 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551104400
Dimensions5.44 × 3.97 × 2.54 mm
L/W Ratio1.37
Top View
5.44 mm3.97 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551104400
Side View
Table 70.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.9%

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: $3,021 NZD|Low: $815 NZD|High: $3,021 NZD|Avg: $1,406 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 4$888 NZD
Retailer 13$962 NZD
Retailer 3$1,037 NZD
Retailer 10$1,037 NZD
Retailer 12$1,112 NZD
Retailer 2$1,176 NZD
Retailer 7$1,195 NZD
Retailer 11$1,206 NZD
Retailer 5$1,316 NZD
Retailer 6$1,427 NZD
Retailer 8$1,485 NZD
Retailer 9$2,220 NZD
NZ Jewellers$3,021 NZD

30 data points across 13 retailers

16 retailers$888 NZD to $2,220 NZD

A
Cheapest Retailer
-
$888 NZD
Final sale: no returns
A
Retailer 2
-
$962 NZD
View
B+
Retailer 3
-
$1,037 NZD
View
Retailer 4
-
$1,037 NZD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$1,112 NZD
View
Retailer 6
-
$1,112 NZD
View
Price last confirmed 14 days ago
B+
Retailer 7
-
$1,176 NZD
View
B+
Retailer 8
-
$1,195 NZD
View
B+
Retailer 9
-
$1,206 NZD
View
B+
Retailer 10
-
$1,316 NZD
View
B+
Retailer 11
-
$1,427 NZD
View
Retailer 12
-
$1,448 NZD
View
Price last confirmed 35 days ago
B+
Retailer 13
-
$1,485 NZD
View
B
Retailer 14
-
$2,220 NZD
View
Retailer 15
-
$3,021 NZD
View
Price under review
Most Expensive
NZ Jewellers
a5b4e83d-9984-4621-a5e4-939c3e55263a · Oct 23
$3,021 NZD
$1,698 USD
View
Price under review
15 more retailers have this diamond
Prices start from $888 NZDSave up to $1,332 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
$888 NZD