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Emerald|Natural|GIA

0.51ct F SI1 Emerald Natural Diamond

VG • F/SI1 • GIA 2231146918

Certificate GIA 2231146918

Diamond specifications and retailer prices

From $888 NZD
As of November 4, 2026
Save $1,565 NZD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,335 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2231146918. Listed at 18 retailers as of November 4, 2026, with a 176% 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2231146918
Dimensions5.45 × 3.61 × 2.50 mm
L/W Ratio1.51
Top View
5.45 mm3.61 mm0.51 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2231146918
Side View
Table 68.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 69.1%

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: $3,335 NZD|Low: $888 NZD|High: $3,335 NZD|Avg: $1,443 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 18$888 NZD
Retailer 8$916 NZD
Retailer 3$964 NZD
Retailer 15$1,037 NZD
Retailer 17$1,037 NZD
Retailer 7$1,112 NZD
Retailer 6$1,165 NZD
Retailer 5$1,227 NZD
Retailer 16$1,227 NZD
Retailer 4$1,281 NZD
Retailer 11$1,293 NZD
Retailer 14$1,316 NZD
Retailer 10$1,407 NZD
Retailer 2$1,485 NZD
Retailer 9$1,637 NZD
Retailer 12$1,640 NZD
Retailer 13$2,453 NZD
NZ Jewellers$3,335 NZD

46 data points across 18 retailers

18 retailers$888 NZD to $2,453 NZD

A
Cheapest Retailer
-
$888 NZD
Final sale: no returns
A
Retailer 2
-
$916 NZD
View
B+
Retailer 3
-
$964 NZD
View
Retailer 4
-
$1,037 NZD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,037 NZD
View
B+
Retailer 6
-
$1,112 NZD
View
B+
Retailer 7
-
$1,165 NZD
View
B
Retailer 8
-
$1,227 NZD
View
B
Retailer 9
-
$1,227 NZD
View
B
Retailer 10
-
$1,281 NZD
View
B
Retailer 11
-
$1,293 NZD
View
B
Retailer 12
-
$1,316 NZD
View
Retailer 13
-
$1,407 NZD
View
Price last confirmed 41 days ago
B
Retailer 14
-
$1,485 NZD
View
Retailer 15
-
$1,637 NZD
View
Price last confirmed 33 days ago
B
Retailer 16
-
$1,640 NZD
View
B
Retailer 17
-
$2,453 NZD
View
Most Expensive
NZ Jewellers
512fb3e4-be19-4846-bcc9-ccd5dd914726 · Nov 5
$3,335 NZD
$1,875 USD
View
Price under review
17 more retailers have this diamond
Prices start from $888 NZDSave up to $1,565 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