Round|Natural|GIA

1.30ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 7551135455

Certificate GIA 7551135455

Diamond specifications and retailer prices

From $3,884 USD
As of November 6, 2026
Save $3,854 USD (50%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,488 USD at NZ Jewellers · As of October 14, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551135455. Listed at 20 retailers as of November 4, 2026, with a 99% 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
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7551135455
Dimensions6.96 × 6.90 × 4.32 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Needle
Top View
6.96 mm6.90 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551135455
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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: $4,662 USD|Low: $2,717 USD|High: $7,886 USD|Avg: $5,097 USD|+71.6%
Retailer 1
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 7$3,884 USD
Retailer 6$4,074 USD
Retailer 4$4,185 USD
Retailer 9$4,388 USD
Retailer 2$4,414 USD
Retailer 1$4,662 USD
Retailer 19$4,671 USD
Retailer 15$4,766 USD
Retailer 3$4,770 USD
Retailer 18$4,770 USD
Retailer 11$4,816 USD
Retailer 10$4,930 USD
Retailer 8$5,047 USD
Retailer 5$5,379 USD
Retailer 13$5,403 USD
Retailer 14$5,471 USD
Retailer 12$5,944 USD
Retailer 16$7,738 USD
Retailer 17$7,854 USD

22 data points across 19 retailers

20 retailers$3,884 USD to $7,738 USD

A
Cheapest Retailer
-
$3,884 USD
B+
Retailer 2
-
$4,074 USD
View
Final sale: no returns
B+
Retailer 3
-
$4,185 USD
View
B+
Retailer 4
-
$4,388 USD
View
Retailer 5
-
$4,414 USD
View
Price last confirmed 23 days ago
B+
Retailer 6
-
$4,662 USD
View
B+
Retailer 7
-
$4,671 USD
View
B+
Retailer 8
-
$4,766 USD
View
B+
Retailer 9
-
$4,770 USD
View
B+
Retailer 10
-
$4,770 USD
View
B
Retailer 11
-
$4,930 USD
View
B
Retailer 12
-
$5,047 USD
View
Retailer 13
-
$5,093 USD
View
Price last confirmed 24 days ago
Retailer 14
-
$5,379 USD
View
Price last confirmed 22 days ago
B+
Retailer 15
-
$5,403 USD
View
B+
Retailer 16
-
$5,471 USD
View
B
Retailer 17
-
$5,944 USD
View
B
Retailer 18
-
$7,738 USD
View
Retailer 19
-
$7,854 USD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
b9d3379d-b903-40f9-a188-a9709c2d832f · Oct 14
$8,488 USD
View
Price last confirmed 23 days ago
19 more retailers have this diamond
Prices start from $3,884 USDSave up to $3,854 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
$3,884 USD