Radiant|Natural|GIA

1.50ct G SI1 Radiant Natural Diamond

VG • G/SI1 • GIA 6551223804

Certificate GIA 6551223804

Diamond specifications and retailer prices

From $8,449 NZD
$4,762 USD
As of November 1, 2026
Save $8,710 NZD (51%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $17,885 NZD 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: $11,681 NZD|Low: $8,696 NZD|High: $17,227 NZD|Avg: $11,843 NZD|+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$8,696 NZD
Retailer 9$8,942 NZD
Retailer 2$9,076 NZD
Retailer 7$10,254 NZD
Retailer 3$10,431 NZD
Retailer 10$10,572 NZD
Retailer 1$11,681 NZD
Retailer 4$13,139 NZD
Retailer 5$15,839 NZD
Retailer 6$17,159 NZD

41 data points across 10 retailers

24 retailers$8,449 NZD to $17,159 NZD

A
Cheapest Retailer
-
$8,449 NZD
$4,762 USD
A
Retailer 2
-
$8,534 NZD
$4,810 USD
View
A
Retailer 3
-
$8,696 NZD
$4,901 USD
View
A
Retailer 4
-
$8,942 NZD
$5,040 USD
View
Final sale: no returns
A
Retailer 5
-
$9,017 NZD
$5,082 USD
View
A
Retailer 6
-
$9,076 NZD
$5,115 USD
View
A
Retailer 7
-
$9,577 NZD
$5,397 USD
View
Retailer 8
-
$9,688 NZD
$5,460 USD
View
Price last confirmed 25 days ago
Retailer 9
-
$9,688 NZD
$5,460 USD
View
Price last confirmed 32 days ago
Retailer 10
-
$9,688 NZD
$5,460 USD
View
Price last confirmed 25 days ago
A
Retailer 11
-
$10,254 NZD
$5,779 USD
View
A
Retailer 12
-
$10,415 NZD
$5,870 USD
View
A
Retailer 13
-
$10,415 NZD
$5,870 USD
View
A
Retailer 14
-
$10,431 NZD
£4,629 GBP
View
Retailer 15
-
$10,572 NZD
A$9,167 AUD
View
Price last confirmed 23 days ago
B+
Retailer 16
-
$10,752 NZD
$6,060 USD
View
B+
Retailer 17
-
$10,964 NZD
$6,179 USD
View
Retailer 18
-
$11,178 NZD
$6,300 USD
View
Price last confirmed 24 days ago
B+
Retailer 19
-
$11,681 NZD
€6,270 EUR
View
Retailer 20
-
$11,794 NZD
$6,647 USD
View
Price last confirmed 18 days ago
B+
Retailer 21
-
$13,139 NZD
ZAR 119,630 ZAR
View
B+
Retailer 22
-
$15,839 NZD
£7,029 GBP
View
B
Retailer 23
-
$17,159 NZD
£7,615 GBP
View
Most Expensive
NZ Jewellers
194092b5-fb0a-4757-a02c-093528dfb8cd · Sep 30
$17,885 NZD
$10,080 USD
View
Price last confirmed 32 days ago
23 more retailers have this diamond
Prices start from $8,449 NZDSave up to $8,710 NZD

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
$8,449 NZD