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Round|Natural|GIA

3.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6565651079

Certificate GIA 6565651079

Diamond specifications and retailer prices

From $36,488 AUD
$25,631 USD
As of October 30, 2026
Save $37,559 AUD (51%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $74,047 AUD at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

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 6565651079. Listed at 12 retailers as of October 30, 2026, with prices from $36,488 to $74,047, a $37,559 spread on the same certified stone. 77 Diamonds lists it at $74,047. 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
FluorescenceStrong
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6565651079
Dimensions9.60 × 9.65 × 6.10 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Cavity, Needle, Natural
Top View
9.60 mm9.65 mm3.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6565651079
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.4%

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 30
Current: $74,047 AUD|Low: $36,488 AUD|High: $84,093 AUD|Avg: $50,991 AUD
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 9$36,488 AUD
Retailer 6$36,520 AUD
Retailer 5$37,195 AUD
Retailer 2$37,574 AUD
Retailer 7$38,042 AUD
Retailer 8$38,407 AUD
Retailer 10$38,745 AUD
Retailer 12$40,134 AUD
Retailer 11$41,361 AUD
Retailer 3$49,441 AUD
Retailer 4$72,347 AUD
77 Diamonds$74,047 AUD

3 data points across 12 retailers

12 retailers$36,488 AUD to $74,047 AUD

A
Cheapest Retailer
-
$36,488 AUD
$25,631 USD
A
Retailer 2
-
$36,520 AUD
$25,653 USD
View
A
Retailer 3
-
$37,195 AUD
$26,127 USD
View
A
Retailer 4
-
$37,574 AUD
₹2,513,695 INR
View
A
Retailer 5
-
$38,042 AUD
View
A
Retailer 6
-
$38,407 AUD
$26,979 USD
View
Final sale: no returns
A
Retailer 7
-
$38,745 AUD
$27,216 USD
View
A
Retailer 8
-
$40,134 AUD
$28,192 USD
View
A
Retailer 9
-
$41,361 AUD
$29,054 USD
View
B+
Retailer 10
-
$49,441 AUD
£27,346 GBP
View
B
Retailer 11
-
$72,347 AUD
$50,820 USD
View
Most Expensive
B
77 Diamonds
RBPUIFSFDRQNC85 · Oct 30
$74,047 AUD
£40,956 GBP
View
11 more retailers have this diamond
Prices start from $36,488 AUDSave up to $37,559 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
$36,488 AUD