Round|Natural|GIA

1.30ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 5231671888

Certificate GIA 5231671888

Diamond specifications and retailer prices

From $3,539 USD
As of November 7, 2026
Save $3,541 USD (50%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,786 USD at NZ Jewellers · As of October 6, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5231671888. Listed at 16 retailers as of November 7, 2026, with a 100% 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
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5231671888
Dimensions6.92 × 6.96 × 4.34 mm
L/W Ratio1.01
Top View
6.92 mm6.96 mm1.30 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5231671888
Side View
Table 55.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

Caratlytics Score

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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 7
Current: $4,759 USD|Low: $3,539 USD|High: $7,419 USD|Avg: $5,156 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 8$3,539 USD
Retailer 2$4,305 USD
Retailer 4$4,499 USD
Retailer 1$4,759 USD
Retailer 7$4,767 USD
Retailer 5$4,884 USD
Retailer 9$5,055 USD
Retailer 6$5,453 USD
Retailer 3$7,080 USD

43 data points across 9 retailers

16 retailers$3,539 USD to $7,080 USD

A
Cheapest Retailer
-
$3,539 USD
A
Retailer 2
-
$3,815 USD
View
Retailer 3
-
$4,049 USD
View
Price last confirmed 26 days ago
Retailer 4
-
$4,049 USD
View
Price last confirmed 31 days ago
Retailer 5
-
$4,170 USD
View
Price last confirmed 39 days ago
B+
Retailer 6
-
$4,305 USD
View
B+
Retailer 7
-
$4,499 USD
View
Retailer 8
-
$4,672 USD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
$4,759 USD
View
Retailer 10
-
$4,767 USD
View
Price last confirmed 29 days ago
B+
Retailer 11
-
$4,884 USD
View
B+
Retailer 12
-
$4,897 USD
View
Retailer 13
-
$5,055 USD
View
Price last confirmed 24 days ago
B+
Retailer 14
-
$5,453 USD
View
B
Retailer 15
-
$7,080 USD
View
Most Expensive
NZ Jewellers
6f44f5d5-f02c-40f3-8779-ae1411139d79 · Oct 6
$7,786 USD
View
Price last confirmed 32 days ago
15 more retailers have this diamond
Prices start from $3,539 USDSave up to $3,541 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
$3,539 USD