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Cushion|Natural|GIA

1.30ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 7436877616

Certificate GIA 7436877616

Diamond specifications and retailer prices

From $7,239 AUD
As of November 4, 2026
Save $5,947 AUD (45%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $13,186 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion 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 stated by the retailer rather than the lab and certified by GIA 7436877616. Listed at 8 retailers as of November 4, 2026, with prices from $7,239 to $13,186, a $5,947 spread on the same certified stone. MOH London lists it at $13,186. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle39.43°
Pavilion angle30.75°
OriginNatural
Grading LabGIA
CertificateGIA 7436877616
Dimensions6.79 × 5.38 × 3.94 mm
L/W Ratio1.26
Top View
6.79 mm5.38 mm1.30 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 7436877616
Side View
Table 60.0%Crown 39.43°Girdle: Slightly ThickPavilion 30.75°Culet: NDepth 73.3%

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 4
Current: $13,186 AUD|Low: $6,853 AUD|High: $13,380 AUD|Avg: $9,252 AUD|+2.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$7,239 AUD
Retailer 6$7,661 AUD
Retailer 7$8,302 AUD
Retailer 5$8,345 AUD
Retailer 2$9,341 AUD
Retailer 4$9,758 AUD
Retailer 3$10,128 AUD
MOH London$13,186 AUD

43 data points across 8 retailers

8 retailers$7,239 AUD to $13,186 AUD

B+
Cheapest Retailer
-
$7,239 AUD
B+
Retailer 2
-
$7,661 AUD
View
Final sale: no returns
Retailer 3
-
$8,302 AUD
View
Price last confirmed 9 days ago
Retailer 4
-
$8,345 AUD
View
Price last confirmed 20 days ago
B
Retailer 5
-
$9,341 AUD
View
B
Retailer 6
-
$9,758 AUD
View
B
Retailer 7
-
$10,128 AUD
View
Most Expensive
B
MOH London
52759B235 · Nov 4
$13,186 AUD
£7,134 GBP
View
7 more retailers have this diamond
Prices start from $7,239 AUDSave up to $5,947 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 Cushion
$7,239 AUD