Emerald|Natural|GIA

0.51ct E SI1 Emerald Natural Diamond

EX • E/SI1 • GIA 2566017480

Certificate GIA 2566017480

Diamond specifications and retailer prices

From HK$5,171 HKD
$659 USD
As of October 23, 2026
Save HK$1,791 HKD (26%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$15,638 HKD at NZ Jewellers · As of October 20, 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 E 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 2566017480. Listed at 16 retailers as of October 23, 2026, with a 35% 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566017480
Dimensions5.57 × 3.72 × 2.46 mm
L/W Ratio1.50
Girdle conditionPolished
Top View
5.57 mm3.72 mm0.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566017480
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.2%

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 23
Current: HK$15,638 HKD|Low: HK$3,366 HKD|High: HK$16,101 HKD|Avg: HK$6,900 HKD|-2.9%
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
October 23, 2026
Retailer 7HK$4,118 HKD
Retailer 11HK$4,551 HKD
Retailer 12HK$4,967 HKD
Retailer 10HK$5,005 HKD
Retailer 5HK$5,086 HKD
Retailer 16HK$5,171 HKD
Retailer 14HK$5,216 HKD
Retailer 13HK$6,049 HKD
Retailer 9HK$6,395 HKD
Retailer 6HK$6,673 HKD
Retailer 2HK$6,962 HKD
Retailer 3HK$7,276 HKD
Retailer 15HK$7,611 HKD
Retailer 8HK$7,719 HKD
Retailer 4HK$11,579 HKD
NZ JewellersHK$15,638 HKD

20 data points across 16 retailers

16 retailersHK$5,171 HKD to HK$6,962 HKD

A
Retailer 1
-
HK$4,118 HKD
Price last confirmed 7 days ago
A
Retailer 2
-
HK$4,967 HKD
$633 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
HK$5,005 HKD
€608 EUR
View
Price last confirmed 6 days ago
A
Retailer 4
-
HK$5,086 HKD
SGD 876 SGD
View
Price last confirmed 8 days ago
A
Retailer 5
-
HK$5,171 HKD
$659 USD
View
A
Retailer 6
-
HK$5,216 HKD
£523 GBP
View
Price last confirmed 7 days ago
B+
Retailer 7
-
HK$6,049 HKD
£607 GBP
View
Price last confirmed 7 days ago
B+
Retailer 8
-
HK$6,395 HKD
$815 USD
View
Price last confirmed 5 days ago
B+
Retailer 9
-
HK$6,673 HKD
$850 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
HK$6,750 HKD
£677 GBP
View
Price last confirmed 33 days ago
B+
Retailer 11
-
HK$6,962 HKD
€845 EUR
View
B+
Retailer 12
-
HK$7,276 HKD
$927 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
HK$7,611 HKD
ZAR 15,670 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 14
-
HK$7,719 HKD
A$1,513 AUD
View
Price last confirmed 24 days ago
B
Retailer 15
-
HK$11,579 HKD
£1,162 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
NZ Jewellers
0935f67e-5a7e-4757-bb0e-c6b24f30efcd · Oct 20
HK$15,638 HKD
$1,993 USD
View
Price under review
15 more retailers have this diamond
Prices start from HK$5,171 HKDSave up to HK$1,791 HKD

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
HK$5,171 HKD