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Round|Natural|GIA

1.53ct D SI1 Round Natural Diamond

VG • D/SI1 • GIA 6405966890

Certificate GIA 6405966890

Diamond specifications and retailer prices

From $7,605 AUD
As of November 5, 2026
Save $11,043 AUD (59%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $18,648 AUD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.53ct natural round diamond

This 1.53ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6405966890. Listed at 11 retailers as of November 5, 2026, with prices from $7,605 to $18,648, a $11,043 spread on the same certified stone. Diamond Quarter lists it at $18,648. 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

1.53
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle38.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 6405966890
Dimensions7.21 × 7.14 × 4.62 mm
L/W Ratio1.01
Top View
7.21 mm7.14 mm1.53 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6405966890
Side View
Table 57.0%Crown 38.5°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 64.4%

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 5
Current: $11,747 AUD|Low: $7,605 AUD|High: $14,786 AUD|Avg: $10,515 AUD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 7$7,605 AUD
Retailer 4$9,348 AUD
Retailer 5$9,574 AUD
Retailer 8$9,725 AUD
Retailer 2$10,449 AUD
Retailer 6$10,614 AUD
Retailer 1$11,747 AUD
Retailer 3$14,145 AUD

33 data points across 8 retailers

11 retailers$7,605 AUD to $18,648 AUD

A
Cheapest Retailer
-
$7,605 AUD
Retailer 2
-
$8,957 AUD
View
Price last confirmed 89 days ago
A
Retailer 3
-
$9,348 AUD
View
A
Retailer 4
-
$9,574 AUD
View
Retailer 5
-
$9,725 AUD
View
Price last confirmed 33 days ago
A
Retailer 6
-
$10,449 AUD
View
Retailer 7
-
$10,614 AUD
View
Price last confirmed 14 days ago
B+
Retailer 8
-
$11,474 AUD
View
B+
Retailer 9
-
$11,747 AUD
View
B+
Retailer 10
-
$14,145 AUD
View
Most Expensive
B
Diamond Quarter
1.53SI1D6490F964N · Nov 5
$18,648 AUD
£10,279 GBP
View
10 more retailers have this diamond
Prices start from $7,605 AUDSave up to $11,043 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.

A
1.53ct Round
$7,605 AUD