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Round|Natural|GIA

1.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2527673497

Certificate GIA 2527673497

Diamond specifications and retailer prices

From $4,659 USD
As of November 6, 2026
Save $5,437 USD (54%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $10,096 USD at NZ Jewellers · As of November 5, 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 2527673497. Listed at 25 retailers as of November 5, 2026, with prices from $4,659 to $10,096, a $5,437 spread on the same certified stone. NZ Jewellers lists it at $10,096. 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 angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2527673497
Dimensions7.31 × 7.26 × 4.51 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Top View
7.31 mm7.26 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2527673497
Side View
Table 61.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.8%

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 6
Current: $10,096 USD|Low: $4,441 USD|High: $10,096 USD|Avg: $6,374 USD|+4.1%
NZ Jewellers
Retailer 2
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Retailer 19
Retailer 20
Retailer 21
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Retailer 23
November 6, 2026
Retailer 10$4,659 USD
Retailer 2$4,702 USD
Retailer 16$5,110 USD
Retailer 18$5,166 USD
Retailer 9$5,264 USD
Retailer 5$5,552 USD
Retailer 8$5,572 USD
Retailer 4$5,625 USD
Retailer 20$5,791 USD
Retailer 15$5,796 USD
Retailer 6$5,960 USD
Retailer 7$6,036 USD
Retailer 23$6,036 USD
Retailer 13$6,174 USD
Retailer 3$6,192 USD
Retailer 11$6,237 USD
Retailer 19$6,414 USD
Retailer 12$6,965 USD
Retailer 17$7,364 USD
Retailer 14$8,847 USD
Retailer 21$8,869 USD
Retailer 22$9,094 USD
NZ Jewellers$10,096 USD

17 data points across 23 retailers

25 retailers$4,659 USD to $10,096 USD

A
Cheapest Retailer
-
$4,659 USD
A
Retailer 2
-
$4,702 USD
View
A
Retailer 3
-
$5,075 USD
View
Retailer 4
-
$5,110 USD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$5,166 USD
View
B+
Retailer 6
-
$5,264 USD
View
A
Retailer 7
-
$5,552 USD
View
A
Retailer 8
-
$5,572 USD
View
Final sale: no returns
B+
Retailer 9
-
$5,625 USD
View
B+
Retailer 10
-
$5,791 USD
View
Retailer 11
-
$5,796 USD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$5,960 USD
View
Retailer 13
-
$5,967 USD
View
Price last confirmed 28 days ago
B+
Retailer 14
-
$6,036 USD
View
B+
Retailer 15
-
$6,036 USD
View
B+
Retailer 16
-
$6,174 USD
View
B+
Retailer 17
-
$6,192 USD
View
B+
Retailer 18
-
$6,237 USD
View
B+
Retailer 19
-
$6,414 USD
View
B
Retailer 20
-
$6,965 USD
View
B
Retailer 21
-
$7,364 USD
View
B
Retailer 22
-
$8,847 USD
View
B
Retailer 23
-
$8,869 USD
View
B
Retailer 24
-
$9,094 USD
View
Most Expensive
B
NZ Jewellers
0328da95-e06d-4905-b7d6-a1d383768632 · Nov 5
$10,096 USD
View
24 more retailers have this diamond
Prices start from $4,659 USDSave up to $5,437 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
$4,659 USD