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Round|Natural|GIA

5.90ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2235119592

Certificate GIA 2235119592

Diamond specifications and retailer prices

From $121,786 AUD
$85,548 USD
As of October 31, 2026
Save $30,682 AUD (20%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $152,468 AUD at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 5.9ct natural round diamond

This 5.9ct natural round sits in the over five carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2235119592. Listed at 4 retailers as of October 30, 2026, with prices from $121,786 to $152,468, a $30,682 spread on the same certified stone. 77 Diamonds lists it at $152,468. 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

5.90
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2235119592
Dimensions11.48 × 11.54 × 7.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Top View
11.48 mm11.54 mm5.90 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235119592
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

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 31
Current: $152,468 AUD|Low: $120,644 AUD|High: $153,399 AUD|Avg: $132,238 AUD|+1.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 2$121,786 AUD
Retailer 3$127,297 AUD
Retailer 4$127,949 AUD
77 Diamonds$152,468 AUD

29 data points across 4 retailers

4 retailers$121,786 AUD to $152,468 AUD

A
Cheapest Retailer
-
$121,786 AUD
$85,548 USD
B+
Retailer 2
-
$127,297 AUD
$89,419 USD
View
B+
Retailer 3
-
$127,949 AUD
$89,877 USD
View
Most Expensive
B
77 Diamonds
RBMBCUJFXQUH · Oct 30
$152,468 AUD
£84,331 GBP
View
3 more retailers have this diamond
Prices start from $121,786 AUDSave up to $30,682 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
5.90ct Round
$121,786 AUD