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Round|Natural|GIA

1.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2554462236

Certificate GIA 2554462236

Diamond specifications and retailer prices

From $4,815 USD
As of November 1, 2026
Save $5,883 USD (55%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $10,698 USD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round 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 and certified by GIA 2554462236. Listed at 27 retailers as of November 1, 2026, with prices from $4,815 to $10,698, a $5,883 spread on the same certified stone. NZ Jewellers lists it at $10,698. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2554462236
Dimensions7.28 × 7.25 × 4.56 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
7.28 mm7.25 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554462236
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.8%

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: $10,698 USD|Low: $4,815 USD|High: $10,698 USD|Avg: $6,264 USD|+3.9%
NZ Jewellers
Retailer 2
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Retailer 27
November 5, 2026
Retailer 3$4,815 USD
Retailer 6$4,882 USD
Retailer 7$4,913 USD
Retailer 12$5,053 USD
Retailer 26$5,056 USD
Retailer 8$5,119 USD
Retailer 14$5,348 USD
Retailer 27$5,410 USD
Retailer 18$5,595 USD
Retailer 15$5,682 USD
Retailer 9$5,720 USD
Retailer 4$5,795 USD
Retailer 5$5,795 USD
Retailer 10$5,795 USD
Retailer 16$5,863 USD
Retailer 25$5,899 USD
Retailer 21$6,095 USD
Retailer 19$6,123 USD
Retailer 17$6,338 USD
Retailer 20$6,370 USD
Retailer 22$6,578 USD
Retailer 11$6,686 USD
Retailer 2$6,817 USD
Retailer 24$7,859 USD
Retailer 13$9,269 USD
Retailer 23$9,423 USD
NZ Jewellers$10,698 USD

31 data points across 27 retailers

27 retailers$4,815 USD to $10,698 USD

A
Cheapest Retailer
-
$4,815 USD
A
Retailer 2
-
$4,882 USD
View
A
Retailer 3
-
$4,913 USD
View
A
Retailer 4
-
$5,053 USD
View
A
Retailer 5
-
$5,056 USD
View
A
Retailer 6
-
$5,119 USD
View
A
Retailer 7
-
$5,258 USD
View
A
Retailer 8
-
$5,410 USD
View
B+
Retailer 9
-
$5,595 USD
View
B+
Retailer 10
-
$5,682 USD
View
B+
Retailer 11
-
$5,720 USD
View
B+
Retailer 12
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$5,795 USD
View
B+
Retailer 13
-
$5,795 USD
View
Retailer 14
-
$5,795 USD
View
Price last confirmed 8 days ago
Retailer 15
-
$5,863 USD
View
Price last confirmed 22 days ago
B+
Retailer 16
-
$5,899 USD
View
B+
Retailer 17
-
$6,095 USD
View
Retailer 18
-
$6,123 USD
View
Price last confirmed 34 days ago
B+
Retailer 19
-
$6,338 USD
View
Retailer 20
-
$6,370 USD
View
Price last confirmed 31 days ago
B+
Retailer 21
-
$6,578 USD
View
B+
Retailer 22
-
$6,686 USD
View
B+
Retailer 23
-
$6,817 USD
View
B+
Retailer 24
-
$7,859 USD
View
B
Retailer 25
-
$9,269 USD
View
B
Retailer 26
-
$9,423 USD
View
Most Expensive
B
NZ Jewellers
567a0f31-d2f5-4f2a-9708-cf85a34a9260 · Nov 2
$10,698 USD
View
26 more retailers have this diamond
Prices start from $4,815 USDSave up to $5,883 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.

A
1.50ct Round
$4,815 USD