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Marquise|Natural|GIA

1.30ct D SI1 Marquise Natural Diamond

GD • D/SI1 • GIA 1543723990

Certificate GIA 1543723990

Diamond specifications and retailer prices

From $11,237 AUD
As of November 5, 2026
Save $8,828 AUD (44%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $24,145 AUD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.3ct natural marquise diamond

This 1.3ct natural marquise 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1543723990. Listed at 25 retailers as of November 4, 2026, with a 79% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.30
Carat
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.81°
Pavilion angle42.07°
OriginNatural
Grading LabGIA
CertificateGIA 1543723990
Dimensions10.86 × 5.78 × 3.59 mm
L/W Ratio1.88
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Cloud, Needle, Natural
Top View
10.86 mm5.78 mm1.30 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1543723990
Side View
Table 66.0%Crown 36.81°Girdle: STK-VTKPavilion 42.07°Culet: NoneDepth 62.1%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $13,353 AUD|Low: $9,574 AUD|High: $20,361 AUD|Avg: $14,427 AUD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 4$11,487 AUD
Retailer 2$12,071 AUD
Retailer 3$12,669 AUD
Retailer 8$13,042 AUD
Retailer 9$13,342 AUD
Retailer 1$13,353 AUD
Retailer 10$14,637 AUD
Retailer 5$14,922 AUD
Retailer 6$17,613 AUD
Retailer 7$20,066 AUD

39 data points across 10 retailers

25 retailers$11,237 AUD to $20,066 AUD

Retailer 1
-
$11,167 AUD
Price last confirmed 15 days ago
B+
Retailer 2
-
$11,237 AUD
View
B+
Retailer 3
-
$11,279 AUD
View
B+
Retailer 4
-
$11,304 AUD
View
B+
Retailer 5
-
$11,487 AUD
View
B+
Retailer 6
-
$11,632 AUD
View
B
Retailer 7
-
$12,007 AUD
View
B
Retailer 8
-
$12,071 AUD
View
Final sale: no returns
Retailer 9
-
$12,073 AUD
View
Price last confirmed 26 days ago
B
Retailer 10
-
$12,669 AUD
View
B
Retailer 11
-
$12,867 AUD
View
B
Retailer 12
-
$13,042 AUD
View
Retailer 13
-
$13,078 AUD
View
Price last confirmed 30 days ago
B
Retailer 14
-
$13,241 AUD
View
B
Retailer 15
-
$13,251 AUD
View
Retailer 16
-
$13,281 AUD
View
Price last confirmed 37 days ago
Retailer 17
-
$13,342 AUD
View
Price last confirmed 15 days ago
B+
Retailer 18
-
$13,353 AUD
View
B
Retailer 19
-
$14,429 AUD
View
B
Retailer 20
-
$14,637 AUD
View
B
Retailer 21
-
$14,922 AUD
View
Retailer 22
-
$15,091 AUD
View
Price last confirmed 29 days ago
B
Retailer 23
-
$17,613 AUD
View
B
Retailer 24
-
$20,066 AUD
View
Most Expensive
NZ Jewellers
7a6be33e-0d9d-4435-b74e-15ac63f9e27e · Sep 30
$24,145 AUD
$16,590 USD
View
Price last confirmed 38 days ago
24 more retailers have this diamond
Prices start from $11,237 AUDSave up to $8,828 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 Marquise
$11,237 AUD