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Round|Natural|GIA

1.30ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 1538383423

Certificate GIA 1538383423

Diamond specifications and retailer prices

From $6,090 NZD
As of November 3, 2026
Save $6,409 NZD (51%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $13,342 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1538383423. Listed at 12 retailers as of November 1, 2026, with a 105% 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1538383423
Dimensions6.97 × 6.94 × 4.33 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
6.97 mm6.94 mm1.30 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1538383423
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41°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: Nov 3
Current: $11,056 NZD|Low: $4,766 NZD|High: $12,649 NZD|Avg: $7,726 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 12$4,766 NZD
Retailer 9$6,090 NZD
Retailer 4$6,346 NZD
Retailer 3$6,620 NZD
Retailer 5$6,801 NZD
Retailer 2$7,151 NZD
Retailer 6$7,573 NZD
Retailer 10$7,658 NZD
Retailer 11$7,925 NZD
Retailer 7$8,136 NZD
NZ Jewellers$11,056 NZD
Retailer 8$12,499 NZD

28 data points across 12 retailers

12 retailers$6,090 NZD to $12,499 NZD

A
Cheapest Retailer
-
$6,090 NZD
Final sale: no returns
A
Retailer 2
-
$6,355 NZD
View
A
Retailer 3
-
$6,801 NZD
View
A
Retailer 4
-
$7,151 NZD
View
A
Retailer 5
-
$7,573 NZD
View
Retailer 6
-
$7,658 NZD
View
Price last confirmed 36 days ago
Retailer 7
-
$7,658 NZD
View
Price last confirmed 38 days ago
A
Retailer 8
-
$7,925 NZD
View
A
Retailer 9
-
$8,136 NZD
View
Retailer 10
-
$8,836 NZD
View
Price last confirmed 38 days ago
B+
Retailer 11
-
$12,499 NZD
View
Most Expensive
NZ Jewellers
47524fe3-ea46-402d-b839-9160e9e734d1 · Sep 26
$13,342 NZD
$7,396 USD
View
Price last confirmed 40 days ago
11 more retailers have this diamond
Prices start from $6,090 NZDSave up to $6,409 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
$6,090 NZD