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Round|Natural|GIA

1.53ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 7531777542

Certificate GIA 7531777542

Diamond specifications and retailer prices

From $12,594 AUD
As of November 5, 2026
Save $5,781 AUD (31%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $20,992 AUD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

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 top-tier cut grade and certified by GIA 7531777542. Listed at 16 retailers as of November 5, 2026, with a 46% 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

1.53
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7531777542
Dimensions7.41 × 7.45 × 4.53 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
7.41 mm7.45 mm1.53 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7531777542
Side View
Table 58.0%Crown 34.5°GirdlePavilion 40.8°Culet: NoneDepth 61.0%

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: $20,992 AUD|Low: $11,545 AUD|High: $20,992 AUD|Avg: $15,344 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 11$12,594 AUD
Retailer 5$12,595 AUD
Retailer 2$13,542 AUD
Retailer 13$13,645 AUD
Retailer 9$13,826 AUD
Retailer 12$13,855 AUD
Retailer 4$15,743 AUD
Retailer 8$15,745 AUD
Retailer 3$16,319 AUD
Retailer 6$16,321 AUD
Retailer 7$18,375 AUD
Retailer 10$19,776 AUD
NZ Jewellers$20,992 AUD

33 data points across 13 retailers

16 retailers$12,594 AUD to $18,375 AUD

Retailer 1
-
$11,792 AUD
Price last confirmed 14 days ago
B+
Retailer 2
-
$12,594 AUD
View
Final sale: no returns
Retailer 3
-
$12,595 AUD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
$13,542 AUD
View
Retailer 5
-
$13,645 AUD
View
Price last confirmed 15 days ago
Retailer 6
-
$13,826 AUD
View
Price last confirmed 15 days ago
Retailer 7
-
$13,855 AUD
View
Price last confirmed 15 days ago
B
Retailer 8
-
$15,039 AUD
View
Retailer 9
-
$15,743 AUD
View
Price last confirmed 16 days ago
B+
Retailer 10
-
$15,745 AUD
View
Retailer 11
-
$16,319 AUD
View
Price last confirmed 16 days ago
B+
Retailer 12
-
$16,321 AUD
View
Retailer 13
-
$16,578 AUD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$18,375 AUD
View
Retailer 15
-
$19,776 AUD
View
Price last confirmed 16 days ago
Most Expensive
NZ Jewellers
be851e44-a0bb-42f1-91a5-43aeb3674939 · Oct 20
$20,992 AUD
$14,695 USD
View
Price last confirmed 16 days ago
15 more retailers have this diamond
Prices start from $12,594 AUDSave up to $5,781 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+
1.53ct Round
$12,594 AUD