Radiant|Natural|GIA

1.50ct H SI1 Radiant Natural Diamond

VG • H/SI1 • GIA 6402063917

Certificate GIA 6402063917

Diamond specifications and retailer prices

From $8,947 AUD
$6,270 USD
As of October 28, 2026
Save $7,754 AUD (46%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $19,935 AUD at NZ Jewellers · As of September 20, 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 H 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 6402063917. Listed at 24 retailers as of October 28, 2026, with a 87% 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6402063917
Dimensions6.81 × 5.71 × 3.95 mm
L/W Ratio1.19
Top View
6.81 mm5.71 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6402063917
Side View
Table 61.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 69.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $11,250 AUD|Low: $8,947 AUD|High: $16,811 AUD|Avg: $11,666 AUD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 10$8,947 AUD
Retailer 2$9,418 AUD
Retailer 11$9,967 AUD
Retailer 8$9,968 AUD
Retailer 12$9,974 AUD
Retailer 3$10,933 AUD
Retailer 1$11,250 AUD
Retailer 9$11,430 AUD
Retailer 6$13,005 AUD
Retailer 4$13,129 AUD
Retailer 7$14,513 AUD
Retailer 5$16,701 AUD

35 data points across 12 retailers

24 retailers$8,947 AUD to $16,701 AUD

B+
Cheapest Retailer
-
$8,947 AUD
$6,270 USD
B+
Retailer 2
-
$9,274 AUD
View
B+
Retailer 3
-
$9,418 AUD
$6,600 USD
View
B
Retailer 4
-
$9,837 AUD
CA$9,575 CAD
View
B
Retailer 5
-
$9,967 AUD
$6,985 USD
View
Final sale: no returns
Retailer 6
-
$9,968 AUD
$6,986 USD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$9,974 AUD
$6,990 USD
View
B
Retailer 8
-
$10,051 AUD
$7,044 USD
View
Retailer 9
-
$10,799 AUD
$7,568 USD
View
Price last confirmed 41 days ago
B
Retailer 10
-
$10,933 AUD
View
B
Retailer 11
-
$11,250 AUD
£6,208 GBP
View
B
Retailer 12
-
$11,411 AUD
$7,997 USD
View
Retailer 13
-
$11,430 AUD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$11,915 AUD
$8,350 USD
View
B
Retailer 15
-
$11,915 AUD
$8,350 USD
View
B
Retailer 16
-
$12,011 AUD
$8,417 USD
View
B
Retailer 17
-
$12,314 AUD
$8,630 USD
View
Retailer 18
-
$12,460 AUD
$8,732 USD
View
Price last confirmed 48 days ago
Retailer 19
-
$12,460 AUD
$8,732 USD
View
Price last confirmed 41 days ago
B
Retailer 20
-
$13,005 AUD
€8,680 EUR
View
Retailer 21
-
$13,129 AUD
$9,201 USD
View
Price last confirmed 10 days ago
B
Retailer 22
-
$14,513 AUD
ZAR 164,312 ZAR
View
B
Retailer 23
-
$16,701 AUD
£9,216 GBP
View
Most Expensive
NZ Jewellers
8944de0e-8a30-4f9f-bdbe-a017dfb80603 · Sep 20
$19,935 AUD
$13,971 USD
View
Price last confirmed 43 days ago
23 more retailers have this diamond
Prices start from $8,947 AUDSave up to $7,754 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+
1.50ct Radiant
$8,947 AUD