Round|Natural|GIA

1.30ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6545016555

Certificate GIA 6545016555

Diamond specifications and retailer prices

From $3,519 USD
As of November 4, 2026
Save $4,171 USD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,690 USD at NZ Jewellers · As of November 5, 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 6545016555. Listed at 20 retailers as of November 4, 2026, with prices from $3,519 to $7,690, a $4,171 spread on the same certified stone. NZ Jewellers lists it at $7,690. 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
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
OriginNatural
Grading LabGIA
CertificateGIA 6545016555
Dimensions7.04 × 7.01 × 4.32 mm
L/W Ratio1.00
Star length50%
Top View
7.04 mm7.01 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545016555
Side View
Table 59.0%Crown 32.5°Girdle: ThickPavilionCulet: NoneDepth 61.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,224 USD|Low: $3,519 USD|High: $7,114 USD|Avg: $4,688 USD|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$3,519 USD
Retailer 6$3,585 USD
Retailer 1$4,224 USD
Retailer 2$4,443 USD
Retailer 7$4,708 USD
Retailer 4$4,963 USD
Retailer 3$5,385 USD
Retailer 5$7,030 USD

37 data points across 8 retailers

20 retailers$3,519 USD to $7,690 USD

A
Cheapest Retailer
-
$3,519 USD
A
Retailer 2
-
$3,585 USD
View
A
Retailer 3
-
$3,657 USD
View
B+
Retailer 4
-
$3,815 USD
View
B+
Retailer 5
-
$3,999 USD
View
Retailer 6
-
$3,999 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$3,999 USD
View
B+
Retailer 8
-
$4,224 USD
View
B+
Retailer 9
-
$4,253 USD
View
B+
Retailer 10
-
$4,443 USD
View
B+
Retailer 11
-
$4,510 USD
View
B+
Retailer 12
-
$4,510 USD
View
B+
Retailer 13
-
$4,614 USD
View
B+
Retailer 14
-
$4,660 USD
View
Retailer 15
-
$4,708 USD
View
Price last confirmed 28 days ago
B
Retailer 16
-
$4,963 USD
View
Retailer 17
-
$4,994 USD
View
Price last confirmed 14 days ago
B
Retailer 18
-
$5,385 USD
View
B
Retailer 19
-
$7,030 USD
View
Most Expensive
B
NZ Jewellers
000d3fba-2572-4293-a4fc-6348af70821a · Nov 5
$7,690 USD
View
19 more retailers have this diamond
Prices start from $3,519 USDSave up to $4,171 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
$3,519 USD