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Round|Natural|GIA

1.30ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2245029391

Certificate GIA 2245029391

Diamond specifications and retailer prices

From $8,228 NZD
$4,621 USD
As of October 28, 2026
Save $7,133 NZD (46%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $17,415 NZD at NZ Jewellers · As of September 26, 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 2245029391. Listed at 23 retailers as of October 26, 2026, with a 87% 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 angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2245029391
Dimensions7.02 × 7.05 × 4.24 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural, Needle
Top View
7.02 mm7.05 mm1.30 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2245029391
Side View
Table 61.0%Crown 33°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.2%

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 28
Current: $10,060 NZD|Low: $7,257 NZD|High: $15,693 NZD|Avg: $10,678 NZD|+21.0%
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
October 29, 2026
Retailer 5$8,228 NZD
Retailer 17$8,708 NZD
Retailer 4$8,849 NZD
Retailer 8$8,885 NZD
Retailer 14$9,397 NZD
Retailer 9$9,418 NZD
Retailer 15$9,910 NZD
Retailer 1$10,060 NZD
Retailer 10$10,077 NZD
Retailer 2$10,430 NZD
Retailer 7$10,680 NZD
Retailer 16$11,011 NZD
Retailer 11$11,230 NZD
Retailer 6$11,486 NZD
Retailer 12$12,680 NZD
Retailer 3$15,236 NZD
Retailer 13$15,361 NZD

36 data points across 17 retailers

23 retailers$8,228 NZD to $15,361 NZD

A
Cheapest Retailer
-
$8,228 NZD
$4,621 USD
A
Retailer 2
-
$8,594 NZD
$4,827 USD
View
Price last confirmed 52 days ago
A
Retailer 3
-
$8,708 NZD
$4,891 USD
View
Final sale: no returns
A
Retailer 4
-
$8,849 NZD
$4,970 USD
View
B+
Retailer 5
-
$9,397 NZD
CA$7,330 CAD
View
B+
Retailer 6
-
$9,433 NZD
$5,298 USD
View
Price last confirmed 21 days ago
B+
Retailer 7
-
$9,433 NZD
$5,298 USD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
$9,433 NZD
$5,298 USD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
$9,910 NZD
$5,566 USD
View
B+
Retailer 10
-
$9,916 NZD
$5,569 USD
View
Price last confirmed 52 days ago
B+
Retailer 11
-
$10,060 NZD
£4,449 GBP
View
B+
Retailer 12
-
$10,077 NZD
£4,457 GBP
View
B+
Retailer 13
-
$10,430 NZD
A$9,012 AUD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
$10,680 NZD
$5,998 USD
View
B+
Retailer 15
-
$10,884 NZD
$6,113 USD
View
Price last confirmed 20 days ago
B+
Retailer 16
-
$11,011 NZD
$6,184 USD
View
B+
Retailer 17
-
$11,230 NZD
€6,007 EUR
View
B+
Retailer 18
-
$11,486 NZD
$6,451 USD
View
Price last confirmed 14 days ago
B+
Retailer 19
-
$12,680 NZD
ZAR 115,049 ZAR
View
B
Retailer 20
-
$14,972 NZD
$8,409 USD
View
Price last confirmed 58 days ago
B
Retailer 21
-
$15,236 NZD
$8,557 USD
View
B
Retailer 22
-
$15,361 NZD
£6,793 GBP
View
Most Expensive
B
NZ Jewellers
706707aa-8f58-4f49-90ae-9d7c16d30a3b · Sep 26
$17,415 NZD
$9,781 USD
View
Price last confirmed 32 days ago
22 more retailers have this diamond
Prices start from $8,228 NZDSave up to $7,133 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
$8,228 NZD