Round|Natural|GIA

1.53ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6551018412

Certificate GIA 6551018412

Diamond specifications and retailer prices

From $8,063 AUD
As of November 5, 2026
Save $262 AUD (3%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,337 AUD at NZ Jewellers · As of September 26, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551018412. Listed at 15 retailers as of November 6, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6551018412
Dimensions7.43 × 7.47 × 4.48 mm
L/W Ratio1.01
Top View
7.43 mm7.47 mm1.53 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551018412
Side View
Table 59.0%Crown 32°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $8,325 AUD|Low: $5,309 AUD|High: $12,064 AUD|Avg: $7,383 AUD|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 26, 2026
Retailer 11$5,309 AUD
Retailer 14$5,689 AUD
Retailer 12$5,829 AUD
Retailer 5$5,873 AUD
Retailer 13$5,969 AUD
Retailer 6$6,094 AUD
Retailer 16$7,038 AUD
Retailer 4$7,436 AUD
Retailer 15$7,591 AUD
Retailer 9$8,063 AUD
Retailer 10$8,063 AUD
Retailer 8$8,142 AUD
Retailer 1$8,325 AUD
Retailer 7$8,581 AUD
Retailer 3$8,958 AUD
Retailer 2$11,873 AUD

28 data points across 16 retailers

15 retailers$8,063 AUD to $8,325 AUD

Retailer 1
-
$5,309 AUD
Price last confirmed 20 days ago
Retailer 2
-
$5,689 AUD
View
Price last confirmed 21 days ago
Retailer 3
-
$6,465 AUD
View
Price last confirmed 21 days ago
Retailer 4
-
$6,465 AUD
View
Price last confirmed 22 days ago
Retailer 5
-
$6,683 AUD
View
Price last confirmed 29 days ago
Retailer 6
-
$7,038 AUD
View
Price last confirmed 21 days ago
Retailer 7
-
$7,436 AUD
View
Price last confirmed 28 days ago
Retailer 8
-
$7,460 AUD
View
Price last confirmed 21 days ago
B
Retailer 9
-
$8,063 AUD
View
B
Retailer 10
-
$8,063 AUD
View
Retailer 11
-
$8,142 AUD
View
Price last confirmed 22 days ago
B
Retailer 12
-
$8,325 AUD
View
Retailer 13
-
$8,958 AUD
View
Price last confirmed 25 days ago
Retailer 14
-
$11,873 AUD
View
Price last confirmed 22 days ago
Most Expensive
NZ Jewellers
74082c1a-5d6b-47c9-bf25-1313c9b79ed9 · Sep 26
$12,337 AUD
$8,477 USD
View
Price last confirmed 40 days ago
14 more retailers have this diamond
Prices start from $8,063 AUDSave up to $262 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
$8,063 AUD