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Round|Natural|GIA

1.50ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6415623764

Certificate GIA 6415623764

Diamond specifications and retailer prices

From $7,288 AUD
HK$40,000 HKD
As of October 29, 2026
Save $10,277 AUD (59%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $17,565 AUD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

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 6415623764. Listed at 18 retailers as of October 29, 2026, with prices from $7,288 to $17,565, a $10,277 spread on the same certified stone. Diamond Quarter lists it at $17,565. 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
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6415623764
Dimensions7.38 × 7.35 × 4.50 mm
L/W Ratio1.00
Top View
7.38 mm7.35 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6415623764
Side View
Table 57.0%CrownGirdle: MED-SLIPavilionCulet: NoneDepth 61.1%

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 29
Current: $10,818 AUD|Low: $7,288 AUD|High: $16,557 AUD|Avg: $10,215 AUD|+9.9%
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
October 30, 2026
Retailer 6$7,288 AUD
Retailer 3$8,022 AUD
Retailer 4$8,602 AUD
Retailer 2$9,137 AUD
Retailer 11$9,138 AUD
Retailer 8$9,224 AUD
Retailer 9$9,430 AUD
Retailer 13$9,900 AUD
Retailer 7$9,907 AUD
Retailer 12$10,052 AUD
Retailer 5$10,128 AUD
Retailer 1$10,818 AUD
Retailer 15$11,423 AUD
Retailer 10$14,662 AUD
Retailer 14$16,557 AUD

29 data points across 15 retailers

18 retailers$7,288 AUD to $17,565 AUD

A
Cheapest Retailer
-
$7,288 AUD
HK$40,000 HKD
A
Retailer 2
-
$8,022 AUD
₹536,737 INR
View
Retailer 3
-
$8,384 AUD
SGD 7,960 SGD
View
Price last confirmed 16 days ago
A
Retailer 4
-
$8,602 AUD
$6,043 USD
View
A
Retailer 5
-
$8,633 AUD
$6,065 USD
View
B+
Retailer 6
-
$9,137 AUD
$6,419 USD
View
Final sale: no returns
A
Retailer 7
-
$9,138 AUD
$6,420 USD
View
A
Retailer 8
-
$9,224 AUD
£5,103 GBP
View
A
Retailer 9
-
$9,430 AUD
£5,217 GBP
View
B+
Retailer 10
-
$9,900 AUD
$6,955 USD
View
B+
Retailer 11
-
$9,907 AUD
$6,960 USD
View
B+
Retailer 12
-
$10,052 AUD
$7,062 USD
View
B+
Retailer 13
-
$10,128 AUD
$7,115 USD
View
B+
Retailer 14
-
$10,818 AUD
€7,238 EUR
View
B+
Retailer 15
-
$11,423 AUD
$8,025 USD
View
B
Retailer 16
-
$14,662 AUD
£8,111 GBP
View
B
Retailer 17
-
$16,557 AUD
$11,632 USD
View
Most Expensive
B
Diamond Quarter
1.5SI2G646416B8N · Oct 29
$17,565 AUD
£9,717 GBP
View
17 more retailers have this diamond
Prices start from $7,288 AUDSave up to $10,277 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
$7,288 AUD