Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 7551345340

Certificate GIA 7551345340

Diamond specifications and retailer prices

From $4,914 USD
Save $4,241 USD (46%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $9,155 USD at NZ Jewellers
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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551345340. Listed at 18 retailers, with prices from $4,914 to $9,155 at NZ Jewellers, a $4,241 spread on the same certified stone. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551345340
Dimensions7.48 × 5.77 × 3.96 mm
L/W Ratio1.30
Culet sizeNone
Top View
7.48 mm5.77 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551345340
Side View
Table 68.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 68.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $6,077 USD|Low: $4,409 USD|High: $8,824 USD|Avg: $5,575 USD|+1.5%
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
October 1, 2026
Retailer 12$4,409 USD
Retailer 4$4,914 USD
Retailer 8$5,249 USD
Retailer 9$5,328 USD
Retailer 2$5,340 USD
Retailer 13$5,340 USD
Retailer 3$5,520 USD
Retailer 6$5,524 USD
Retailer 5$5,620 USD
Retailer 11$6,039 USD
Retailer 1$6,077 USD
Retailer 7$6,601 USD
Retailer 10$8,824 USD

28 data points across 13 retailers

18 retailers$4,914 USD to $9,155 USD

A
Retailer 1
-
$4,409 USD
Price last confirmed 32 days ago
B+
Retailer 2
-
$4,914 USD
View
B+
Retailer 3
-
$4,959 USD
View
B+
Retailer 4
-
$4,959 USD
View
B+
Retailer 5
-
$4,959 USD
View
B+
Retailer 6
-
$5,249 USD
View
B+
Retailer 7
-
$5,339 USD
£4,204 GBP
View
B+
Retailer 8
-
$5,340 USD
View
B+
Retailer 9
-
$5,340 USD
View
B+
Retailer 10
-
$5,520 USD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
$5,524 USD
A$8,498 AUD
View
B+
Retailer 12
-
$5,620 USD
View
B+
Retailer 13
-
$5,722 USD
View
B+
Retailer 14
-
$6,039 USD
View
B+
Retailer 15
-
$6,077 USD
€5,788 EUR
View
B
Retailer 16
-
$6,601 USD
ZAR 106,632 ZAR
View
B
Retailer 17
-
$8,824 USD
£6,948 GBP
View
Most Expensive
B
NZ Jewellers
ab068887-c31a-4091-9125-10b4d9591357 · Sep 30
$9,155 USD
View
17 more retailers have this diamond
Prices start from $4,914 USDSave up to $4,241 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.

A
1.50ct Radiant
$4,914 USD