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Round|Natural|GIA

1.30ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 7558656099

Certificate GIA 7558656099

Diamond specifications and retailer prices

From $4,883 NZD
HK$21,500 HKD
As of October 29, 2026
Save $6,046 NZD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,587 NZD at NZ Jewellers · As of September 24, 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 7558656099. Listed at 15 retailers as of October 29, 2026, with a 124% 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 7558656099
Dimensions6.98 × 7.02 × 4.29 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.98 mm7.02 mm1.30 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7558656099
Side View
Table 61.0%Crown 33°Girdle: Slightly ThickPavilion 41.8°Culet: NoneDepth 61.3%

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: Oct 29
Current: $10,929 NZD|Low: $4,883 NZD|High: $12,213 NZD|Avg: $7,221 NZD|-10.1%
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
October 29, 2026
Retailer 3$4,883 NZD
Retailer 2$5,229 NZD
Retailer 11$5,696 NZD
Retailer 6$5,759 NZD
Retailer 7$6,577 NZD
Retailer 13$6,671 NZD
Retailer 15$6,671 NZD
Retailer 10$6,711 NZD
Retailer 9$6,902 NZD
Retailer 8$7,160 NZD
Retailer 5$7,629 NZD
Retailer 4$7,667 NZD
Retailer 12$7,718 NZD
Retailer 14$7,915 NZD
Retailer 1$10,929 NZD

23 data points across 15 retailers

15 retailers$4,883 NZD to $10,929 NZD

A
Cheapest Retailer
-
$4,883 NZD
HK$21,500 HKD
A
Retailer 2
-
$5,229 NZD
$2,947 USD
View
Retailer 3
-
$5,696 NZD
$3,210 USD
View
Price last confirmed 5 days ago
Retailer 4
-
$6,577 NZD
$3,707 USD
View
Price last confirmed 39 days ago
A
Retailer 5
-
$6,671 NZD
$3,760 USD
View
A
Retailer 6
-
$6,671 NZD
$3,760 USD
View
A
Retailer 7
-
$6,711 NZD
£2,978 GBP
View
A
Retailer 8
-
$6,902 NZD
$3,890 USD
View
A
Retailer 9
-
$7,160 NZD
€3,843 EUR
View
Retailer 10
-
$7,589 NZD
$4,277 USD
View
Price last confirmed 41 days ago
Retailer 11
-
$7,667 NZD
$4,321 USD
View
Price last confirmed 10 days ago
A
Retailer 12
-
$7,718 NZD
$4,350 USD
View
B+
Retailer 13
-
$7,915 NZD
ZAR 72,070 ZAR
View
B+
Retailer 14
-
$10,929 NZD
£4,850 GBP
View
Most Expensive
NZ Jewellers
512b54c7-b960-4802-b933-260d9e069f26 · Sep 24
$12,587 NZD
$7,094 USD
View
Price last confirmed 38 days ago
14 more retailers have this diamond
Prices start from $4,883 NZDSave up to $6,046 NZD

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
$4,883 NZD