Radiant|Natural|GIA

1.50ct H SI2 Radiant Natural Diamond

GD • H/SI2 • GIA 6405174570

Certificate GIA 6405174570

Diamond specifications and retailer prices

From $7,450 USD
As of October 28, 2026
Save $9,269 USD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $16,719 USD at NZ Jewellers · As of October 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6405174570. Listed at 19 retailers as of October 28, 2026, with prices from $7,450 to $16,719, a $9,269 spread on the same certified stone. NZ Jewellers lists it at $16,719. 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
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6405174570
Dimensions7.40 × 5.69 × 3.93 mm
L/W Ratio1.30
Top View
7.40 mm5.69 mm1.50 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6405174570
Side View
Table 66.0%CrownGirdle: ThinPavilionCulet: NoneDepth 68.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $16,719 USD|Low: $7,450 USD|High: $16,719 USD|Avg: $10,686 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 6$7,450 USD
Retailer 9$8,359 USD
Retailer 8$9,056 USD
Retailer 4$9,114 USD
Retailer 7$9,195 USD
Retailer 2$10,350 USD
Retailer 10$10,449 USD
Retailer 11$11,004 USD
Retailer 3$11,916 USD
Retailer 5$14,006 USD
NZ Jewellers$16,719 USD

44 data points across 11 retailers

19 retailers$7,450 USD to $16,719 USD

B
Cheapest Retailer
-
$7,450 USD
B
Retailer 2
-
$7,782 USD
View
B
Retailer 3
-
$7,813 USD
A$12,020 AUD
View
B
Retailer 4
-
$7,827 USD
View
B
Retailer 5
-
$8,154 USD
CA$11,325 CAD
View
B
Retailer 6
-
$8,359 USD
View
B
Retailer 7
-
$8,429 USD
View
B
Retailer 8
-
$9,056 USD
View
B
Retailer 9
-
$9,114 USD
£7,176 GBP
View
B
Retailer 10
-
$9,195 USD
View
B
Retailer 11
-
$9,614 USD
View
B
Retailer 12
-
$9,890 USD
View
B
Retailer 13
-
$9,890 USD
View
C
Retailer 14
-
$10,220 USD
View
B
Retailer 15
-
$10,350 USD
€9,857 EUR
View
C
Retailer 16
-
$10,449 USD
View
Retailer 17
-
$11,004 USD
View
Price last confirmed 8 days ago
C
Retailer 18
-
$14,006 USD
£11,028 GBP
View
Most Expensive
C
NZ Jewellers
3e09dce9-7112-43dc-a30b-d214329d63b0 · Oct 30
$16,719 USD
View
18 more retailers have this diamond
Prices start from $7,450 USDSave up to $9,269 USD

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
$7,450 USD