Round|Natural|GIA

3.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 1545731260

Certificate GIA 1545731260

Diamond specifications and retailer prices

From $20,081 USD
SGD 27,137 SGD
As of October 27, 2026
Save $7,185 USD (26%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $28,136 USD at Wholesale Diamonds Direct · As of October 23, 2026
View at Wholesale Diamonds Direct

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 1545731260. Listed at 10 retailers as of October 27, 2026, with a 36% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1545731260
Dimensions9.65 × 9.68 × 6.05 mm
L/W Ratio1.00
Culet sizeNone
Top View
9.65 mm9.68 mm3.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1545731260
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.5%

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 27
Current: $20,593 USD|Low: $17,863 USD|High: $30,673 USD|Avg: $24,672 USD|-3.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
October 31, 2026
Retailer 11$17,863 USD
Retailer 5$20,081 USD
Retailer 1$20,593 USD
Retailer 8$22,350 USD
Retailer 7$22,477 USD
Retailer 6$23,501 USD
Retailer 10$25,735 USD
Retailer 4$26,310 USD
Retailer 9$26,456 USD
Retailer 3$27,266 USD
Wholesale Diamonds Direct$28,136 USD
Retailer 2$30,673 USD

32 data points across 12 retailers

10 retailers$20,081 USD to $27,266 USD

A
Cheapest Retailer
-
$20,081 USD
SGD 27,137 SGD
A
Retailer 2
-
$20,593 USD
SGD 27,829 SGD
View
Retailer 3
-
$22,350 USD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$22,477 USD
View
Retailer 5
-
$23,501 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$25,735 USD
View
A
Retailer 7
-
$26,310 USD
€25,057 EUR
View
A
Retailer 8
-
$26,456 USD
View
A
Retailer 9
-
$27,266 USD
View
Most Expensive
Wholesale Diamonds Direct
262903250 · Oct 23
$28,136 USD
View
Price last confirmed 7 days ago
9 more retailers have this diamond
Prices start from $20,081 USDSave up to $7,185 USD

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
$20,081 USD