Radiant|Natural|GIA

1.50ct G SI1 Radiant Natural Diamond

VG • G/SI1 • GIA 6551223804

Certificate GIA 6551223804

Diamond specifications and retailer prices

From $6,779 AUD
$4,762 USD
As of November 1, 2026
Save $6,989 AUD (51%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $14,350 AUD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551223804. Listed at 24 retailers as of October 28, 2026, with a 103% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551223804
Dimensions7.36 × 5.84 × 4.01 mm
L/W Ratio1.26
Top View
7.36 mm5.84 mm1.50 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551223804
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.8%

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 1
Current: $9,372 AUD|Low: $6,977 AUD|High: $13,822 AUD|Avg: $9,502 AUD|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 8$6,977 AUD
Retailer 9$7,175 AUD
Retailer 2$7,282 AUD
Retailer 7$8,227 AUD
Retailer 3$8,369 AUD
Retailer 10$8,482 AUD
Retailer 1$9,372 AUD
Retailer 4$10,542 AUD
Retailer 5$12,708 AUD
Retailer 6$13,768 AUD

41 data points across 10 retailers

24 retailers$6,779 AUD to $13,768 AUD

A
Cheapest Retailer
-
$6,779 AUD
$4,762 USD
A
Retailer 2
-
$6,848 AUD
$4,810 USD
View
A
Retailer 3
-
$6,977 AUD
$4,901 USD
View
A
Retailer 4
-
$7,175 AUD
$5,040 USD
View
Final sale: no returns
A
Retailer 5
-
$7,235 AUD
$5,082 USD
View
A
Retailer 6
-
$7,282 AUD
$5,115 USD
View
A
Retailer 7
-
$7,684 AUD
$5,397 USD
View
Retailer 8
-
$7,773 AUD
$5,460 USD
View
Price last confirmed 25 days ago
Retailer 9
-
$7,773 AUD
$5,460 USD
View
Price last confirmed 32 days ago
Retailer 10
-
$7,773 AUD
$5,460 USD
View
Price last confirmed 25 days ago
A
Retailer 11
-
$8,227 AUD
$5,779 USD
View
A
Retailer 12
-
$8,357 AUD
$5,870 USD
View
A
Retailer 13
-
$8,357 AUD
$5,870 USD
View
A
Retailer 14
-
$8,369 AUD
£4,629 GBP
View
Retailer 15
-
$8,482 AUD
View
Price last confirmed 23 days ago
B+
Retailer 16
-
$8,627 AUD
$6,060 USD
View
B+
Retailer 17
-
$8,797 AUD
$6,179 USD
View
Retailer 18
-
$8,969 AUD
$6,300 USD
View
Price last confirmed 24 days ago
B+
Retailer 19
-
$9,372 AUD
€6,270 EUR
View
Retailer 20
-
$9,463 AUD
$6,647 USD
View
Price last confirmed 18 days ago
B+
Retailer 21
-
$10,542 AUD
ZAR 119,630 ZAR
View
B+
Retailer 22
-
$12,708 AUD
£7,029 GBP
View
B
Retailer 23
-
$13,768 AUD
£7,615 GBP
View
Most Expensive
NZ Jewellers
194092b5-fb0a-4757-a02c-093528dfb8cd · Sep 30
$14,350 AUD
$10,080 USD
View
Price last confirmed 32 days ago
23 more retailers have this diamond
Prices start from $6,779 AUDSave up to $6,989 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 Radiant
$6,779 AUD