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Round|Natural|GIA

1.30ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6551678903

Certificate GIA 6551678903

Diamond specifications and retailer prices

From $5,906 NZD
HK$25,900 HKD
As of October 29, 2026
Save $7,192 NZD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $14,521 NZD at NZ Jewellers · As of September 25, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551678903. Listed at 17 retailers as of October 29, 2026, with a 122% 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6551678903
Dimensions6.98 × 6.93 × 4.33 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.98 mm6.93 mm1.30 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6551678903
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

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: $6,806 NZD|Low: $5,906 NZD|High: $13,310 NZD|Avg: $8,214 NZD|-0.5%
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
October 29, 2026
Retailer 15$5,906 NZD
Retailer 13$6,328 NZD
Retailer 14$6,593 NZD
Retailer 1$6,806 NZD
Retailer 16$6,839 NZD
Retailer 3$7,046 NZD
Retailer 4$7,073 NZD
Retailer 6$7,193 NZD
Retailer 10$7,562 NZD
Retailer 2$7,844 NZD
Retailer 8$8,324 NZD
Retailer 7$8,983 NZD
Retailer 11$9,960 NZD
Retailer 5$10,440 NZD
Retailer 12$12,162 NZD
Retailer 9$13,098 NZD

31 data points across 16 retailers

17 retailers$5,906 NZD to $13,098 NZD

A
Cheapest Retailer
-
$5,906 NZD
HK$25,900 HKD
A
Retailer 2
-
$6,328 NZD
$3,552 USD
View
A
Retailer 3
-
$6,593 NZD
$3,701 USD
View
A
Retailer 4
-
$6,806 NZD
€3,638 EUR
View
A
Retailer 5
-
$6,839 NZD
$3,839 USD
View
Final sale: no returns
A
Retailer 6
-
$7,046 NZD
$3,955 USD
View
A
Retailer 7
-
$7,073 NZD
$3,970 USD
View
A
Retailer 8
-
$7,193 NZD
$4,038 USD
View
A
Retailer 9
-
$7,562 NZD
£3,342 GBP
View
A
Retailer 10
-
$7,802 NZD
A$6,738 AUD
View
A
Retailer 11
-
$7,844 NZD
$4,403 USD
View
A
Retailer 12
-
$8,324 NZD
A$7,188 AUD
View
Price last confirmed 19 days ago
B+
Retailer 13
-
$9,960 NZD
ZAR 90,324 ZAR
View
B+
Retailer 14
-
$10,440 NZD
$5,860 USD
View
B+
Retailer 15
-
$12,162 NZD
$6,827 USD
View
B+
Retailer 16
-
$13,098 NZD
£5,789 GBP
View
Most Expensive
B
NZ Jewellers
9a869dfd-3c5c-419e-899d-e93f71b54a19 · Sep 25
$14,521 NZD
$8,151 USD
View
Price last confirmed 34 days ago
16 more retailers have this diamond
Prices start from $5,906 NZDSave up to $7,192 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
$5,906 NZD