Round|Natural|GIA

1.33ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 3535007950

Certificate GIA 3535007950

Diamond specifications and retailer prices

From $2,255 USD
As of November 5, 2026
Save $1,834 USD (45%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,893 USD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 1.33ct natural round diamond

This 1.33ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3535007950. Listed at 10 retailers as of November 4, 2026, with a 81% 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

1.33
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 3535007950
Dimensions7.03 × 6.99 × 4.33 mm
L/W Ratio1.01
Star length50%
Top View
7.03 mm6.99 mm1.33 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3535007950
Side View
Table 59.0%Crown 36°GirdlePavilion 40.6°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $2,856 USD|Low: $2,255 USD|High: $4,445 USD|Avg: $2,965 USD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 5$2,255 USD
Retailer 3$2,529 USD
Retailer 1$2,856 USD
Retailer 2$2,904 USD
Retailer 4$4,089 USD

42 data points across 5 retailers

10 retailers$2,255 USD to $4,089 USD

A
Cheapest Retailer
-
$2,255 USD
Retailer 2
-
$2,341 USD
View
Price last confirmed 29 days ago
Retailer 3
-
$2,341 USD
View
Price last confirmed 29 days ago
Retailer 4
-
$2,449 USD
View
Price last confirmed 38 days ago
A
Retailer 5
-
$2,529 USD
View
Retailer 6
-
$2,701 USD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$2,856 USD
View
B+
Retailer 8
-
$2,904 USD
View
B
Retailer 9
-
$4,089 USD
View
Most Expensive
NZ Jewellers
8099c4c9-5861-4011-9261-1112a73341e9 · Sep 26
$4,893 USD
View
Price last confirmed 40 days ago
9 more retailers have this diamond
Prices start from $2,255 USDSave up to $1,834 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
1.33ct Round
$2,255 USD