Round|Natural|GIA

0.33ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1553571268

Certificate GIA 1553571268

Diamond specifications and retailer prices

From $343 USD
As of October 31, 2026
Save $821 USD (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,164 USD at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

About this 0.33ct natural round diamond

This 0.33ct natural round sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1553571268. Listed at 13 retailers as of October 30, 2026, with prices from $343 to $1,164, a $821 spread on the same certified stone. Diamond Exchange Canada lists it at $1,164. 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

0.33
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1553571268
Dimensions4.40 × 4.42 × 2.78 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Cloud
Top View
4.40 mm4.42 mm0.33 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1553571268
Side View
Table 56.0%Crown 36.5°Girdle: MediumPavilion 41°Culet: NoneDepth 63.1%

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: $1,164 USD|Low: $225 USD|High: $1,164 USD|Avg: $448 USD
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 5$225 USD
Retailer 4$279 USD
Retailer 13$357 USD
Retailer 11$380 USD
Retailer 10$437 USD
Retailer 12$462 USD
Retailer 3$463 USD
Retailer 8$486 USD
Retailer 9$587 USD
Retailer 2$616 USD
Retailer 6$766 USD
Retailer 7$874 USD
Diamond Exchange Canada$1,164 USD

20 data points across 13 retailers

13 retailers$343 USD to $1,164 USD

A
Cheapest Retailer
-
$343 USD
A
Retailer 2
-
$357 USD
View
A
Retailer 3
-
$380 USD
View
B+
Retailer 4
-
$404 USD
A$621 AUD
View
B+
Retailer 5
-
$437 USD
View
B+
Retailer 6
-
$462 USD
View
B+
Retailer 7
-
$463 USD
View
B+
Retailer 8
-
$486 USD
£383 GBP
View
B
Retailer 9
-
$587 USD
ZAR 9,475 ZAR
View
B+
Retailer 10
-
$616 USD
€587 EUR
View
B
Retailer 11
-
$766 USD
£603 GBP
View
B
Retailer 12
-
$874 USD
£688 GBP
View
Most Expensive
B
Diamond Exchange Canada
1996190397 · Oct 30
$1,164 USD
CA$1,617 CAD
View
12 more retailers have this diamond
Prices start from $343 USDSave up to $821 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
0.33ct Round
$343 USD