CaratHunter
Plans
Emerald|Natural|GIA

0.51ct H SI1 Emerald Natural Diamond

GD • H/SI1 • GIA 2564177545

Certificate GIA 2564177545

Diamond specifications and retailer prices

From HK$4,158 HKD
$530 USD
As of November 1, 2026
Save HK$2,358 HKD (36%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$12,951 HKD at Torres Jewel Co · As of October 4, 2026
View at Torres Jewel Co

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2564177545. Listed at 15 retailers as of November 1, 2026, with a 57% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564177545
Dimensions5.35 × 3.82 × 2.55 mm
L/W Ratio1.40
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather
Top View
5.35 mm3.82 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2564177545
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$6,517 HKD|Low: HK$3,115 HKD|High: HK$24,158 HKD|Avg: HK$11,119 HKD|-52.0%
Retailer 1
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
Torres Jewel Co
November 2, 2026
Retailer 8HK$3,115 HKD
Retailer 10HK$4,158 HKD
Retailer 11HK$4,620 HKD
Retailer 9HK$5,516 HKD
Retailer 1HK$6,517 HKD
Retailer 3HK$9,486 HKD
Retailer 16HK$9,902 HKD
Retailer 7HK$10,286 HKD
Retailer 2HK$10,828 HKD
Retailer 5HK$10,962 HKD
Retailer 15HK$11,432 HKD
Retailer 6HK$12,306 HKD
Torres Jewel CoHK$12,951 HKD
Retailer 12HK$15,319 HKD
Retailer 4HK$16,724 HKD
Retailer 13HK$18,355 HKD
Retailer 14HK$24,158 HKD

33 data points across 17 retailers

15 retailersHK$4,158 HKD to HK$6,517 HKD

B+
Cheapest Retailer
-
HK$4,158 HKD
$530 USD
B+
Retailer 2
-
HK$4,620 HKD
View
B
Retailer 3
-
HK$5,516 HKD
£554 GBP
View
B
Retailer 4
-
HK$6,517 HKD
€791 EUR
View
Retailer 5
-
HK$9,486 HKD
$1,209 USD
View
Price last confirmed 28 days ago
Retailer 6
-
HK$9,902 HKD
$1,262 USD
View
Price last confirmed 26 days ago
Retailer 7
-
HK$10,286 HKD
$1,311 USD
View
Price under review
Retailer 8
-
HK$10,962 HKD
$1,397 USD
View
Price under review
Retailer 9
-
HK$11,432 HKD
$1,457 USD
View
Price under review
Retailer 10
-
HK$12,306 HKD
£1,235 GBP
View
Price under review
Most Expensive
Torres Jewel Co
25704974 · Oct 4
HK$12,951 HKD
A$2,539 AUD
View
Price under review
10 more retailers have this diamond
Prices start from HK$4,158 HKDSave up to HK$2,358 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.

B+
0.51ct Emerald
HK$4,158 HKD