Round|Natural|GIA

1.30ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2235760608

Certificate GIA 2235760608

Diamond specifications and retailer prices

From $3,576 USD
As of November 6, 2026
Save $1,898 USD (35%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $7,817 USD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2235760608. Listed at 29 retailers as of November 5, 2026, with a 53% 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

1.30
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2235760608
Dimensions6.96 × 6.92 × 4.33 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.96 mm6.92 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2235760608
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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: Nov 6
Current: $5,474 USD|Low: $3,713 USD|High: $7,232 USD|Avg: $4,817 USD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 10$3,713 USD
Retailer 11$3,751 USD
Retailer 3$3,870 USD
Retailer 9$4,065 USD
Retailer 7$4,302 USD
Retailer 6$4,516 USD
Retailer 2$4,785 USD
Retailer 4$5,016 USD
Retailer 5$5,045 USD
Retailer 1$5,474 USD
Retailer 8$7,155 USD

33 data points across 11 retailers

29 retailers$3,576 USD to $5,474 USD

A
Cheapest Retailer
-
$3,576 USD
A
Retailer 2
-
$3,751 USD
View
Final sale: no returns
B+
Retailer 3
-
$3,870 USD
View
B+
Retailer 4
-
$4,052 USD
View
Retailer 5
-
$4,065 USD
View
Price last confirmed 12 days ago
Retailer 6
-
$4,065 USD
View
Price last confirmed 29 days ago
Retailer 7
-
$4,065 USD
View
Price last confirmed 21 days ago
Retailer 8
-
$4,065 USD
View
Price last confirmed 15 days ago
Retailer 9
-
$4,065 USD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
$4,065 USD
View
B+
Retailer 11
-
$4,302 USD
View
Retailer 12
-
$4,302 USD
View
Price last confirmed 28 days ago
B+
Retailer 13
-
$4,410 USD
View
B+
Retailer 14
-
$4,410 USD
View
B+
Retailer 15
-
$4,516 USD
View
B+
Retailer 16
-
$4,550 USD
View
Retailer 17
-
$4,690 USD
View
Price last confirmed 28 days ago
Retailer 18
-
$4,690 USD
View
Price last confirmed 16 days ago
Retailer 19
-
$4,690 USD
View
Price last confirmed 14 days ago
Retailer 20
-
$4,785 USD
View
Price last confirmed 28 days ago
B
Retailer 21
-
$5,016 USD
View
B+
Retailer 22
-
$5,045 USD
View
Retailer 23
-
$5,075 USD
View
Price last confirmed 22 days ago
B+
Retailer 24
-
$5,474 USD
View
Retailer 25
-
$7,155 USD
View
Price last confirmed 12 days ago
Retailer 26
-
$7,817 USD
View
Price last confirmed 14 days ago
Retailer 27
-
$7,817 USD
View
Price last confirmed 48 days ago
Retailer 28
-
$7,817 USD
View
Price last confirmed 41 days ago
Most Expensive
NZ Jewellers
d36fb97f-aa5b-4f4b-be20-5658110b2480 · Oct 20
$7,817 USD
View
Price last confirmed 16 days ago
28 more retailers have this diamond
Prices start from $3,576 USDSave up to $1,898 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
1.30ct Round
$3,576 USD