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Emerald|Natural|IGI

4.51ct J SI1 Emerald Natural Diamond

VG • J/SI1 • IGI 671412256

Shape and cutting style on the report: Emerald cut

Certificate IGI 671412256

Diamond specifications and retailer prices

From $42,805 AUD
$30,068 USD
As of October 26, 2026
Save $24,034 AUD (36%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $66,839 AUD at MOH London · As of October 26, 2026
View at MOH London

About this 4.51ct natural emerald diamond

This 4.51ct natural emerald sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 671412256. Listed at 13 retailers as of October 26, 2026, with prices from $42,805 to $66,839, a $24,034 spread on the same certified stone. MOH London lists it at $66,839. 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

4.51
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.4°
Pavilion angle43.8°
OriginNatural
Grading LabIGI
CertificateIGI 671412256
Dimensions11.24 × 7.87 × 5.44 mm
L/W Ratio1.43
Culet sizeLarge
Top View
11.24 mm7.87 mm4.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 671412256
Side View
Table 68.0%Crown 28.4°Girdle: Slightly ThickPavilion 43.8°Culet: LargeDepth 69.1%

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 26
Current: $66,839 AUD|Low: $42,289 AUD|High: $67,553 AUD|Avg: $49,823 AUD
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
October 27, 2026
Retailer 13$42,805 AUD
Retailer 10$42,951 AUD
Retailer 6$43,885 AUD
Retailer 12$44,520 AUD
Retailer 9$45,819 AUD
Retailer 11$47,177 AUD
Retailer 8$49,536 AUD
Retailer 3$51,107 AUD
Retailer 7$51,576 AUD
Retailer 5$52,514 AUD
Retailer 4$53,073 AUD
Retailer 2$53,274 AUD
MOH London$66,839 AUD

27 data points across 13 retailers

13 retailers$42,805 AUD to $66,839 AUD

A
Cheapest Retailer
-
$42,805 AUD
$30,068 USD
A
Retailer 2
-
$42,951 AUD
$30,171 USD
View
A
Retailer 3
-
$43,885 AUD
£24,273 GBP
View
Retailer 4
-
$44,520 AUD
$31,273 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$45,819 AUD
$32,185 USD
View
B+
Retailer 6
-
$47,177 AUD
$33,139 USD
View
B+
Retailer 7
-
$49,536 AUD
$34,796 USD
View
B+
Retailer 8
-
$51,107 AUD
$35,900 USD
View
B+
Retailer 9
-
$51,576 AUD
€34,504 EUR
View
B+
Retailer 10
-
$52,514 AUD
$36,888 USD
View
B+
Retailer 11
-
$53,073 AUD
$37,281 USD
View
B+
Retailer 12
-
$53,274 AUD
ZAR 604,554 ZAR
View
Most Expensive
B+
MOH London
2216008F9 · Oct 26
$66,839 AUD
£36,969 GBP
View
12 more retailers have this diamond
Prices start from $42,805 AUDSave up to $24,034 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.

A
4.51ct Emerald
$42,805 AUD