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Round|Natural|GIA

1.50ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1538231733

Certificate GIA 1538231733

Diamond specifications and retailer prices

From $5,376 AUD
HK$29,500 HKD
As of October 31, 2026
Save $7,118 AUD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,493 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1538231733. Listed at 20 retailers as of October 28, 2026, with prices from $5,376 to $12,493, a $7,118 spread on the same certified stone. Queensmith lists it at $12,493. 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

1.50
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1538231733
Dimensions7.29 × 7.22 × 4.60 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Natural
Top View
7.29 mm7.22 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1538231733
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.4%

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: Oct 31
Current: $12,493 AUD|Low: $5,376 AUD|High: $12,538 AUD|Avg: $7,684 AUD|+2.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 3$5,376 AUD
Retailer 2$5,749 AUD
Retailer 8$6,237 AUD
Retailer 9$6,293 AUD
Retailer 10$6,490 AUD
Retailer 6$6,552 AUD
Retailer 4$6,947 AUD
Retailer 5$7,958 AUD
Retailer 7$11,258 AUD
Queensmith$12,493 AUD

27 data points across 10 retailers

20 retailers$5,376 AUD to $12,493 AUD

A
Cheapest Retailer
-
$5,376 AUD
HK$29,500 HKD
A
Retailer 2
-
$5,749 AUD
₹384,582 INR
View
A
Retailer 3
-
$6,237 AUD
$4,381 USD
View
A
Retailer 4
-
$6,293 AUD
SGD 5,974 SGD
View
A
Retailer 5
-
$6,490 AUD
$4,559 USD
View
Final sale: no returns
A
Retailer 6
-
$6,543 AUD
$4,596 USD
View
A
Retailer 7
-
$6,552 AUD
£3,624 GBP
View
A
Retailer 8
-
$6,841 AUD
SGD 6,494 SGD
View
A
Retailer 9
-
$6,947 AUD
£3,842 GBP
View
A
Retailer 10
-
$7,004 AUD
$4,920 USD
View
Retailer 11
-
$7,031 AUD
$4,939 USD
View
Price last confirmed 33 days ago
Retailer 12
-
$7,031 AUD
$4,939 USD
View
Price last confirmed 15 days ago
Retailer 13
-
$7,031 AUD
$4,939 USD
View
Price last confirmed 32 days ago
Retailer 14
-
$7,031 AUD
$4,939 USD
View
Price last confirmed 11 days ago
A
Retailer 15
-
$7,247 AUD
$5,090 USD
View
A
Retailer 16
-
$7,958 AUD
€5,324 EUR
View
Retailer 17
-
$8,113 AUD
$5,699 USD
View
Price last confirmed 32 days ago
B+
Retailer 18
-
$11,258 AUD
£6,227 GBP
View
Retailer 19
-
$12,250 AUD
$8,605 USD
View
Price last confirmed 35 days ago
Most Expensive
B
Queensmith
1538231733 · Oct 28
$12,493 AUD
£6,910 GBP
View
19 more retailers have this diamond
Prices start from $5,376 AUDSave up to $7,118 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
1.50ct Round
$5,376 AUD