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Emerald|Natural|GIA

0.51ct E SI1 Emerald Natural Diamond

EX • E/SI1 • GIA 5553458174

Certificate GIA 5553458174

Diamond specifications and retailer prices

From HK$4,119 HKD
As of November 4, 2026
Save HK$1,224 HKD (23%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$5,343 HKD at Blue Nile · As of November 5, 2026
View at Blue Nile

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 5553458174. Listed at 6 retailers as of November 4, 2026, with prices from HK$4,119 to HK$5,343, a HK$1,224 spread on the same certified stone. Blue Nile lists it at HK$5,343. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553458174
Dimensions5.58 × 3.66 × 2.43 mm
L/W Ratio1.52
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
5.58 mm3.66 mm0.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553458174
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.4%

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: HK$5,343 HKD|Low: HK$3,601 HKD|High: HK$5,641 HKD|Avg: HK$4,651 HKD|-5.3%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 6HK$4,119 HKD
Retailer 5HK$4,205 HKD
Retailer 3HK$4,276 HKD
Retailer 4HK$4,597 HKD
Retailer 2HK$5,099 HKD
Blue NileHK$5,343 HKD

41 data points across 6 retailers

6 retailersHK$4,119 HKD to HK$5,343 HKD

A
Cheapest Retailer
-
HK$4,119 HKD
A
Retailer 2
-
HK$4,205 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$4,276 HKD
View
A
Retailer 4
-
HK$4,597 HKD
View
B+
Retailer 5
-
HK$5,099 HKD
View
Most Expensive
B+
Blue Nile
29346199 · Nov 5
HK$5,343 HKD
$681 USD
View
5 more retailers have this diamond
Prices start from HK$4,119 HKDSave up to HK$1,224 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$4,119 HKD