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Emerald|Natural|GIA

0.51ct G SI1 Emerald Natural Diamond

EX • G/SI1 • GIA 1236882186

Certificate GIA 1236882186

Diamond specifications and retailer prices

From $862 NZD
$486 USD
As of October 31, 2026
Save $1,384 NZD (62%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,792 NZD at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

About this 0.51ct natural emerald diamond

This 0.51ct natural emerald sits in the half to three-quarter carat band, graded G 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 1236882186. Listed at 7 retailers as of October 31, 2026, with a 161% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1236882186
Dimensions5.39 × 3.97 × 2.69 mm
L/W Ratio1.36
Girdle conditionPolished
Key to symbols
Feather
Top View
5.39 mm3.97 mm0.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236882186
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.8%

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 31
Current: $2,792 NZD|Low: $862 NZD|High: $3,489 NZD|Avg: $1,811 NZD|-20.0%
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 7$862 NZD
Retailer 6$1,077 NZD
Retailer 5$1,219 NZD
Retailer 3$1,240 NZD
Retailer 4$1,326 NZD
Retailer 2$2,247 NZD
Diamond Exchange Canada$2,792 NZD

40 data points across 7 retailers

7 retailers$862 NZD to $2,247 NZD

A
Cheapest Retailer
-
$862 NZD
$486 USD
B+
Retailer 2
-
$1,077 NZD
$607 USD
View
B+
Retailer 3
-
$1,219 NZD
£541 GBP
View
B+
Retailer 4
-
$1,240 NZD
£550 GBP
View
B
Retailer 5
-
$1,326 NZD
€712 EUR
View
B
Retailer 6
-
$2,247 NZD
£997 GBP
View
Most Expensive
Diamond Exchange Canada
1966850474 · Oct 30
$2,792 NZD
CA$2,185 CAD
View
Price under review
6 more retailers have this diamond
Prices start from $862 NZDSave up to $1,384 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
$862 NZD