Round|Natural|GIA

1.50ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 5553036039

Certificate GIA 5553036039

Diamond specifications and retailer prices

From $2,521 USD
As of November 6, 2026
Save $3,004 USD (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,816 USD at NZ Jewellers · As of September 28, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5553036039. Listed at 16 retailers as of November 2, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 5553036039
Dimensions7.32 × 7.37 × 4.54 mm
L/W Ratio1.01
Top View
7.32 mm7.37 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5553036039
Side View
Table 60.0%Crown 33.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.8%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $2,655 USD|Low: $2,521 USD|High: $5,650 USD|Avg: $3,486 USD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$2,521 USD
Retailer 1$2,655 USD
Retailer 6$2,934 USD
Retailer 10$3,026 USD
Retailer 2$3,304 USD
Retailer 3$3,338 USD
Retailer 7$3,398 USD
Retailer 11$3,448 USD
Retailer 4$3,500 USD
Retailer 5$3,838 USD
Retailer 8$5,525 USD

38 data points across 11 retailers

16 retailers$2,521 USD to $5,525 USD

A
Cheapest Retailer
-
$2,521 USD
A
Retailer 2
-
$2,655 USD
View
A
Retailer 3
-
$2,934 USD
View
A
Retailer 4
-
$3,026 USD
View
A
Retailer 5
-
$3,088 USD
View
Retailer 6
-
$3,304 USD
View
Price last confirmed 17 days ago
Retailer 7
-
$3,338 USD
View
Price last confirmed 39 days ago
Retailer 8
-
$3,338 USD
View
Price last confirmed 21 days ago
A
Retailer 9
-
$3,398 USD
View
B+
Retailer 10
-
$3,448 USD
View
Retailer 11
-
$3,467 USD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
$3,500 USD
View
B+
Retailer 13
-
$3,838 USD
View
Retailer 14
-
$3,852 USD
View
Price last confirmed 38 days ago
B
Retailer 15
-
$5,525 USD
View
Most Expensive
NZ Jewellers
a57acf2a-190e-4ab8-973d-801dbbbb7728 · Sep 28
$5,816 USD
View
Price last confirmed 39 days ago
15 more retailers have this diamond
Prices start from $2,521 USDSave up to $3,004 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
$2,521 USD