CaratHunter
Plans
Round|Natural|GIA

3.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6235750387

Shape and cutting style on the report: Round brilliant

Certificate GIA 6235750387

Diamond specifications and retailer prices

From $40,198 AUD
$28,237 USD
As of October 31, 2026
Save $39,963 AUD (50%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $80,161 AUD at Carbon Sparkle · As of October 29, 2026
View at Carbon Sparkle

About this 3.5ct natural round diamond

This 3.5ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6235750387. Listed at 10 retailers as of October 29, 2026, with prices from $40,198 to $80,161, a $39,963 spread on the same certified stone. Carbon Sparkle lists it at $80,161. 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

3.50
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6235750387
Dimensions9.60 × 9.65 × 6.06 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
9.60 mm9.65 mm3.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6235750387
Side View
Table 56.0%Crown 35.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.9%

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: $80,161 AUD|Low: $40,198 AUD|High: $85,375 AUD|Avg: $67,462 AUD
Carbon Sparkle
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 2$40,198 AUD
Retailer 6$41,747 AUD
Retailer 5$43,521 AUD
Retailer 4$45,087 AUD
Retailer 3$46,869 AUD
Retailer 8$69,829 AUD
Retailer 7$70,690 AUD
Retailer 9$73,996 AUD
Retailer 10$77,079 AUD
Carbon Sparkle$80,161 AUD

26 data points across 10 retailers

10 retailers$40,198 AUD to $80,161 AUD

A
Cheapest Retailer
-
$40,198 AUD
$28,237 USD
A
Retailer 2
-
$41,747 AUD
$29,325 USD
View
A
Retailer 3
-
$43,521 AUD
$30,571 USD
View
A
Retailer 4
-
$45,087 AUD
$31,671 USD
View
A
Retailer 5
-
$46,869 AUD
$32,923 USD
View
B
Retailer 6
-
$69,829 AUD
€46,715 EUR
View
B
Retailer 7
-
$70,690 AUD
CA$68,967 CAD
View
B
Retailer 8
-
$73,996 AUD
$51,978 USD
View
B
Retailer 9
-
$77,079 AUD
$54,144 USD
View
Most Expensive
B
Carbon Sparkle
903b5c36-1973-4ed3-a788-65674f4aa57c · Oct 29
$80,161 AUD
$56,309 USD
View
9 more retailers have this diamond
Prices start from $40,198 AUDSave up to $39,963 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
3.50ct Round
$40,198 AUD