Round|Natural|GIA

1.50ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2516679504

Certificate GIA 2516679504

Diamond specifications and retailer prices

From $2,560 USD
As of November 4, 2026
Save $1,497 USD (37%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,791 USD at NZ Jewellers · As of October 17, 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2516679504. Listed at 13 retailers as of November 4, 2026, with a 58% 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
M
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2516679504
Dimensions7.43 × 7.46 × 4.42 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
7.43 mm7.46 mm1.50 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2516679504
Side View
Table 60.0%Crown 31.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 59.3%

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 4
Current: $4,057 USD|Low: $2,534 USD|High: $4,085 USD|Avg: $3,290 USD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 4$2,560 USD
Retailer 2$2,699 USD
Retailer 6$3,140 USD
Retailer 7$3,324 USD
Retailer 5$3,350 USD
Retailer 3$3,878 USD
Retailer 1$4,057 USD

45 data points across 7 retailers

13 retailers$2,560 USD to $4,057 USD

A
Cheapest Retailer
-
$2,560 USD
A
Retailer 2
-
$2,699 USD
View
B+
Retailer 3
-
$3,140 USD
View
B+
Retailer 4
-
$3,215 USD
View
Retailer 5
-
$3,324 USD
View
Price last confirmed 21 days ago
Retailer 6
-
$3,324 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$3,350 USD
View
Retailer 8
-
$3,452 USD
View
Price last confirmed 22 days ago
B
Retailer 9
-
$3,468 USD
View
Retailer 10
-
$3,835 USD
View
Price last confirmed 19 days ago
B
Retailer 11
-
$3,878 USD
View
B
Retailer 12
-
$4,057 USD
View
Most Expensive
NZ Jewellers
969f4ba8-31f4-4392-bbab-5f758398246b · Oct 17
$5,791 USD
View
Price last confirmed 19 days ago
12 more retailers have this diamond
Prices start from $2,560 USDSave up to $1,497 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
$2,560 USD