Round|Natural|GIA

1.50ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 6515131968

Certificate GIA 6515131968

Diamond specifications and retailer prices

From $3,223 USD
Save $3,699 USD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,922 USD at NZ Jewellers
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 M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6515131968. Listed at 10 retailers, with prices from $3,223 to $6,922 at NZ Jewellers, a $3,699 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
M
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6515131968
Dimensions7.35 × 7.38 × 4.50 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
7.35 mm7.38 mm1.50 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6515131968
Side View
Table 61.0%Crown 33°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $4,412 USD|Low: $2,688 USD|High: $4,728 USD|Avg: $3,673 USD|+1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
September 30, 2026
Retailer 7$2,688 USD
Retailer 4$3,223 USD
Retailer 5$3,496 USD
Retailer 2$3,529 USD
Retailer 6$3,617 USD
Retailer 1$4,412 USD
Retailer 3$4,728 USD

7 data points across 7 retailers

10 retailers$3,223 USD to $6,922 USD

B+
Cheapest Retailer
-
$3,223 USD
B
Retailer 2
-
$3,496 USD
View
B
Retailer 3
-
$3,529 USD
View
Price last confirmed 32 days ago
B
Retailer 4
-
$3,973 USD
View
B
Retailer 5
-
$3,973 USD
View
B
Retailer 6
-
$3,973 USD
View
B
Retailer 7
-
$4,412 USD
€4,202 EUR
View
B
Retailer 8
-
$4,585 USD
View
B
Retailer 9
-
$4,728 USD
ZAR 76,385 ZAR
View
Price last confirmed 43 days ago
Most Expensive
C
NZ Jewellers
d1b7a6fe-1d3e-4548-a86b-f1b238e93730 · Sep 28
$6,922 USD
View
9 more retailers have this diamond
Prices start from $3,223 USDSave up to $3,699 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.

B+
1.50ct Round
$3,223 USD