Round|Natural|GIA

1.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 3555882902

Certificate GIA 3555882902

Diamond specifications and retailer prices

From $2,079 USD
As of November 5, 2026
Save $6,089 USD (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,168 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3555882902. Listed at 13 retailers as of November 2, 2026, with prices from $2,079 to $8,168, a $6,089 spread on the same certified stone. NZ Jewellers lists it at $8,168. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 3555882902
Dimensions7.24 × 7.29 × 4.56 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.24 mm7.29 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555882902
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 41.2°Culet: NoneDepth 62.7%

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 5
Current: $8,168 USD|Low: $1,974 USD|High: $8,208 USD|Avg: $3,387 USD|-0.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 6$1,974 USD
Retailer 2$2,079 USD
Retailer 12$2,553 USD
Retailer 4$2,827 USD
Retailer 11$3,023 USD
Retailer 13$3,045 USD
Retailer 3$3,158 USD
Retailer 7$3,270 USD
Retailer 5$3,959 USD
Retailer 9$4,248 USD
Retailer 14$4,323 USD
Retailer 8$4,688 USD
Retailer 10$4,688 USD
NZ Jewellers$8,168 USD

30 data points across 14 retailers

13 retailers$2,079 USD to $8,168 USD

A
Cheapest Retailer
-
$2,079 USD
A
Retailer 2
-
$2,553 USD
View
A
Retailer 3
-
$2,827 USD
View
A
Retailer 4
-
$3,023 USD
View
A
Retailer 5
-
$3,045 USD
View
A
Retailer 6
-
$3,158 USD
View
A
Retailer 7
-
$3,270 USD
View
B+
Retailer 8
-
$3,959 USD
View
B+
Retailer 9
-
$4,248 USD
View
B+
Retailer 10
-
$4,323 USD
View
B+
Retailer 11
-
$4,688 USD
View
B+
Retailer 12
-
$4,688 USD
View
Most Expensive
B
NZ Jewellers
17da86bd-d81d-4784-8543-95fe10cd3d01 · Nov 2
$8,168 USD
View
12 more retailers have this diamond
Prices start from $2,079 USDSave up to $6,089 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
$2,079 USD