Round|Natural|GIA

1.30ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 1558372388

Certificate GIA 1558372388

Diamond specifications and retailer prices

From $1,907 USD
As of November 4, 2026
Save $3,329 USD (64%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,236 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1558372388. Listed at 15 retailers as of November 4, 2026, with prices from $1,907 to $5,236, a $3,329 spread on the same certified stone. NZ Jewellers lists it at $5,236. 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
K
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1558372388
Dimensions6.92 × 6.95 × 4.32 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.92 mm6.95 mm1.30 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558372388
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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: $5,236 USD|Low: $1,856 USD|High: $5,265 USD|Avg: $2,593 USD|-0.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 10$1,907 USD
Retailer 11$1,980 USD
Retailer 5$2,038 USD
Retailer 14$2,050 USD
Retailer 13$2,094 USD
Retailer 15$2,098 USD
Retailer 6$2,184 USD
Retailer 7$2,232 USD
Retailer 3$2,269 USD
Retailer 9$2,374 USD
Retailer 12$2,618 USD
Retailer 2$2,634 USD
Retailer 8$2,920 USD
Retailer 4$4,315 USD
NZ Jewellers$5,236 USD

31 data points across 15 retailers

15 retailers$1,907 USD to $5,236 USD

A
Cheapest Retailer
-
$1,907 USD
A
Retailer 2
-
$1,980 USD
View
A
Retailer 3
-
$2,038 USD
View
A
Retailer 4
-
$2,050 USD
View
A
Retailer 5
-
$2,094 USD
View
Final sale: no returns
A
Retailer 6
-
$2,098 USD
View
A
Retailer 7
-
$2,184 USD
View
Retailer 8
-
$2,232 USD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$2,269 USD
View
A
Retailer 10
-
$2,374 USD
View
B+
Retailer 11
-
$2,618 USD
View
B+
Retailer 12
-
$2,634 USD
View
B+
Retailer 13
-
$2,920 USD
View
B
Retailer 14
-
$4,315 USD
View
Most Expensive
B
NZ Jewellers
eb213151-6507-4408-8adc-17db97831ab7 · Nov 5
$5,236 USD
View
14 more retailers have this diamond
Prices start from $1,907 USDSave up to $3,329 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
$1,907 USD