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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 HK$3,303 HKD
$421 USD
As of October 29, 2026
Save HK$5,017 HKD (60%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$8,320 HKD 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 HK$3,303 to HK$8,320, a HK$5,017 spread on the same certified stone. MOH London lists it at HK$8,320. 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: HK$8,320 HKD|Low: HK$3,091 HKD|High: HK$14,005 HKD|Avg: HK$5,456 HKD|-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 4HK$3,303 HKD
Retailer 17HK$3,585 HKD
Retailer 5HK$3,860 HKD
Retailer 13HK$3,860 HKD
Retailer 16HK$4,135 HKD
Retailer 9HK$4,257 HKD
Retailer 11HK$4,461 HKD
Retailer 12HK$4,491 HKD
Retailer 14HK$5,139 HKD
Retailer 8HK$5,170 HKD
Retailer 15HK$5,217 HKD
Retailer 7HK$5,291 HKD
Retailer 2HK$5,421 HKD
Retailer 10HK$5,531 HKD
Retailer 6HK$5,854 HKD
MOH LondonHK$8,320 HKD
Retailer 3HK$13,738 HKD

39 data points across 17 retailers

16 retailersHK$3,303 HKD to HK$8,320 HKD

A
Cheapest Retailer
-
HK$3,303 HKD
$421 USD
Final sale: no returns
A
Retailer 2
-
HK$3,585 HKD
$457 USD
View
B+
Retailer 3
-
HK$3,860 HKD
$492 USD
View
A
Retailer 4
-
HK$3,860 HKD
$492 USD
View
B+
Retailer 5
-
HK$4,135 HKD
$527 USD
View
B+
Retailer 6
-
HK$4,461 HKD
£448 GBP
View
B+
Retailer 7
-
HK$4,491 HKD
£451 GBP
View
B
Retailer 8
-
HK$5,139 HKD
$655 USD
View
Retailer 9
-
HK$5,170 HKD
$659 USD
View
Price last confirmed 17 days ago
B
Retailer 10
-
HK$5,217 HKD
$665 USD
View
B
Retailer 11
-
HK$5,291 HKD
$674 USD
View
B+
Retailer 12
-
HK$5,421 HKD
€658 EUR
View
B
Retailer 13
-
HK$5,531 HKD
ZAR 11,389 ZAR
View
Retailer 14
-
HK$5,854 HKD
A$1,148 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
ABBE5E4C0 · Oct 29
HK$8,320 HKD
£835 GBP
View
14 more retailers have this diamond
Prices start from HK$3,303 HKDSave up to HK$5,017 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$3,303 HKD