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Emerald|Natural|GIA

0.51ct H SI1 Emerald Natural Diamond

GD • H/SI1 • GIA 6555273625

Certificate GIA 6555273625

Diamond specifications and retailer prices

From $755 AUD
$530 USD
As of October 30, 2026
Save $685 AUD (48%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,350 AUD 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 6555273625. Listed at 19 retailers as of October 30, 2026, with a 91% 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 6555273625
Dimensions5.39 × 3.85 × 2.56 mm
L/W Ratio1.40
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
5.39 mm3.85 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555273625
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.5%

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: Oct 30
Current: $1,153 AUD|Low: $559 AUD|High: $4,383 AUD|Avg: $1,887 AUD|-41.3%
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
Retailer 17
Retailer 18
Torres Jewel Co
October 31, 2026
Retailer 10$654 AUD
Retailer 18$755 AUD
Retailer 13$814 AUD
Retailer 2$838 AUD
Retailer 17$1,006 AUD
Retailer 15$1,072 AUD
Retailer 16$1,089 AUD
Retailer 1$1,153 AUD
Retailer 11$1,188 AUD
Retailer 12$1,365 AUD
Retailer 14$1,439 AUD
Retailer 7$1,721 AUD
Retailer 5$1,797 AUD
Retailer 9$1,866 AUD
Retailer 4$2,074 AUD
Torres Jewel Co$2,350 AUD
Retailer 8$3,034 AUD
Retailer 6$3,330 AUD
Retailer 3$4,383 AUD

38 data points across 19 retailers

19 retailers$755 AUD to $1,439 AUD

B+
Cheapest Retailer
-
$755 AUD
$530 USD
B+
Retailer 2
-
$814 AUD
$572 USD
View
Final sale: no returns
B+
Retailer 3
-
$838 AUD
HK$4,600 HKD
View
B
Retailer 4
-
$1,006 AUD
£556 GBP
View
B
Retailer 5
-
$1,072 AUD
$753 USD
View
B
Retailer 6
-
$1,089 AUD
£602 GBP
View
Retailer 7
-
$1,153 AUD
$810 USD
View
Price under review
B
Retailer 8
-
$1,188 AUD
€795 EUR
View
B
Retailer 9
-
$1,365 AUD
ZAR 15,488 ZAR
View
C
Retailer 10
-
$1,439 AUD
$1,011 USD
View
Retailer 11
-
$1,721 AUD
$1,209 USD
View
Price last confirmed 26 days ago
Retailer 12
-
$1,797 AUD
$1,262 USD
View
Price last confirmed 24 days ago
Retailer 13
-
$1,866 AUD
$1,311 USD
View
Price under review
Retailer 14
-
$2,074 AUD
$1,457 USD
View
Price under review
Most Expensive
Torres Jewel Co
25700729 · Oct 4
$2,350 AUD
View
Price under review
14 more retailers have this diamond
Prices start from $755 AUDSave up to $685 AUD

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
$755 AUD