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Oval|Natural|IGI

5.99ct G SI1 Oval Natural Diamond

VG • G/SI1 • IGI 747581979

Shape and cutting style on the report: Oval brilliant

Certificate IGI 747581979

Diamond specifications and retailer prices

From $120,983 AUD
$84,984 USD
As of October 30, 2026
Save $67,905 AUD (36%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $188,888 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 5.99ct natural oval diamond

This 5.99ct natural oval sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 747581979. Listed at 13 retailers as of October 30, 2026, with prices from $120,983 to $188,888, a $67,905 spread on the same certified stone. MOH London lists it at $188,888. 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

5.99
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle39.2°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 747581979
Dimensions14.09 × 10.09 × 6.43 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Top View
14.09 mm10.09 mm5.99 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 747581979
Side View
Table 56.0%Crown 39.2°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 63.7%

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 30
Current: $188,888 AUD|Low: $122,388 AUD|High: $191,164 AUD|Avg: $142,787 AUD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 3$123,132 AUD
Retailer 8$125,984 AUD
Retailer 2$127,642 AUD
Retailer 9$139,063 AUD
Retailer 7$144,625 AUD
Retailer 5$145,496 AUD
Retailer 4$146,338 AUD
Retailer 6$150,188 AUD
MOH London$188,888 AUD

33 data points across 9 retailers

13 retailers$120,983 AUD to $188,888 AUD

A
Cheapest Retailer
-
$120,983 AUD
$84,984 USD
A
Retailer 2
-
$122,376 AUD
$85,962 USD
View
Final sale: no returns
A
Retailer 3
-
$123,132 AUD
£68,105 GBP
View
A
Retailer 4
-
$125,984 AUD
$88,497 USD
View
A
Retailer 5
-
$127,642 AUD
£70,600 GBP
View
A
Retailer 6
-
$128,985 AUD
$90,605 USD
View
B+
Retailer 7
-
$139,063 AUD
$97,684 USD
View
B+
Retailer 8
-
$144,625 AUD
$101,591 USD
View
A
Retailer 9
-
$145,496 AUD
€97,336 EUR
View
A
Retailer 10
-
$146,338 AUD
ZAR 1,660,651 ZAR
View
B+
Retailer 11
-
$148,780 AUD
$104,510 USD
View
B+
Retailer 12
-
$150,188 AUD
$105,499 USD
View
Most Expensive
B+
MOH London
6327D3BC4 · Nov 1
$188,888 AUD
£104,475 GBP
View
12 more retailers have this diamond
Prices start from $120,983 AUDSave up to $67,905 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
5.99ct Oval
$120,983 AUD