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1.30ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6561200253

Certificate GIA 6561200253

Diamond specifications and retailer prices

From $9,620 AUD
As of November 3, 2026
Save $7,772 AUD (45%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $17,392 AUD at NZ Jewellers · As of November 2, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6561200253. Listed at 8 retailers as of November 2, 2026, with prices from $9,620 to $17,392, a $7,772 spread on the same certified stone. NZ Jewellers lists it at $17,392. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6561200253
Dimensions6.92 × 6.95 × 4.35 mm
L/W Ratio1.00
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Needle
Top View
6.92 mm6.95 mm1.30 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561200253
Side View
Table 57.0%Crown 36°GirdlePavilion 40.6°CuletDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $17,392 AUD|Low: $9,620 AUD|High: $17,392 AUD|Avg: $12,359 AUD|+1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$9,620 AUD
Retailer 3$10,004 AUD
Retailer 6$10,092 AUD
Retailer 7$10,399 AUD
Retailer 2$11,760 AUD
Retailer 4$15,318 AUD
NZ Jewellers$17,392 AUD

38 data points across 7 retailers

8 retailers$9,620 AUD to $17,392 AUD

B+
Cheapest Retailer
-
$9,620 AUD
B+
Retailer 2
-
$10,004 AUD
View
Retailer 3
-
$10,092 AUD
View
Price last confirmed 15 days ago
B+
Retailer 4
-
$10,399 AUD
View
Retailer 5
-
$10,559 AUD
View
Price last confirmed 38 days ago
B
Retailer 6
-
$11,760 AUD
View
B
Retailer 7
-
$15,318 AUD
View
Most Expensive
B
NZ Jewellers
ca1d5a6a-a6d1-480a-aa41-73c0b850f3c5 · Nov 2
$17,392 AUD
$11,950 USD
View
7 more retailers have this diamond
Prices start from $9,620 AUDSave up to $7,772 AUD

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.

B+
1.30ct Round
$9,620 AUD