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Emerald|Natural|GIA

0.51ct H SI1 Emerald Natural Diamond

EX • H/SI1 • GIA 6542465909

Certificate GIA 6542465909

Diamond specifications and retailer prices

From $747 NZD
$421 USD
As of October 29, 2026
Save $1,135 NZD (60%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,882 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct natural emerald diamond

This 0.51ct natural emerald sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542465909. Listed at 16 retailers as of October 29, 2026, with prices from $747 to $1,882, a $1,135 spread on the same certified stone. MOH London lists it at $1,882. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542465909
Dimensions5.27 × 3.84 × 2.62 mm
L/W Ratio1.37
Top View
5.27 mm3.84 mm0.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542465909
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NDepth 68.3%

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: Oct 29
Current: $1,882 NZD|Low: $699 NZD|High: $3,167 NZD|Avg: $1,234 NZD|-6.5%
MOH London
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
October 31, 2026
Retailer 4$747 NZD
Retailer 17$811 NZD
Retailer 5$873 NZD
Retailer 13$873 NZD
Retailer 16$935 NZD
Retailer 9$963 NZD
Retailer 11$1,009 NZD
Retailer 12$1,016 NZD
Retailer 14$1,162 NZD
Retailer 8$1,169 NZD
Retailer 15$1,180 NZD
Retailer 7$1,197 NZD
Retailer 2$1,226 NZD
Retailer 10$1,251 NZD
Retailer 6$1,324 NZD
MOH London$1,882 NZD
Retailer 3$3,107 NZD

39 data points across 17 retailers

16 retailers$747 NZD to $1,882 NZD

A
Cheapest Retailer
-
$747 NZD
$421 USD
Final sale: no returns
A
Retailer 2
-
$811 NZD
$457 USD
View
B+
Retailer 3
-
$873 NZD
$492 USD
View
A
Retailer 4
-
$873 NZD
$492 USD
View
B+
Retailer 5
-
$935 NZD
$527 USD
View
B+
Retailer 6
-
$1,009 NZD
£448 GBP
View
B+
Retailer 7
-
$1,016 NZD
£451 GBP
View
B
Retailer 8
-
$1,162 NZD
$655 USD
View
Retailer 9
-
$1,169 NZD
$659 USD
View
Price last confirmed 17 days ago
B
Retailer 10
-
$1,180 NZD
$665 USD
View
B
Retailer 11
-
$1,197 NZD
$674 USD
View
B+
Retailer 12
-
$1,226 NZD
€658 EUR
View
B
Retailer 13
-
$1,251 NZD
ZAR 11,389 ZAR
View
Retailer 14
-
$1,324 NZD
A$1,148 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
ABBE5E4C0 · Oct 29
$1,882 NZD
£835 GBP
View
14 more retailers have this diamond
Prices start from $747 NZDSave up to $1,135 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
$747 NZD