CaratHunter
Plans
Round|Natural|GIA

1.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 5426823638

Certificate GIA 5426823638

Diamond specifications and retailer prices

From $2,677 USD
As of October 29, 2026
Save $8,131 USD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,808 USD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5426823638. Listed at 9 retailers as of October 26, 2026, with prices from $2,677 to $10,808, a $8,131 spread on the same certified stone. Wholesale Diamonds Direct lists it at $10,808. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5426823638
Dimensions7.31 × 7.27 × 4.55 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.31 mm7.27 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5426823638
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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: Oct 29
Current: $5,596 USD|Low: $2,677 USD|High: $10,808 USD|Avg: $6,351 USD|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
October 23, 2026
Retailer 6$2,677 USD
Retailer 5$2,780 USD
Retailer 8$4,999 USD
Retailer 3$5,156 USD
Retailer 4$5,171 USD
Retailer 1$5,596 USD
Retailer 2$6,384 USD
Retailer 7$6,785 USD
Retailer 12$7,142 USD
Retailer 10$7,260 USD
Retailer 11$7,260 USD
Retailer 9$7,500 USD
Wholesale Diamonds Direct$10,808 USD

9 data points across 13 retailers

9 retailers$2,677 USD to $10,808 USD

A
Cheapest Retailer
-
$2,677 USD
A
Retailer 2
-
$2,780 USD
View
A
Retailer 3
-
$4,999 USD
View
B+
Retailer 4
-
$5,596 USD
View
B+
Retailer 5
-
$6,785 USD
View
B
Retailer 6
-
$7,260 USD
View
B
Retailer 7
-
$7,260 USD
View
B
Retailer 8
-
$7,500 USD
View
Most Expensive
B
Wholesale Diamonds Direct
581904020 · Oct 26
$10,808 USD
View
8 more retailers have this diamond
Prices start from $2,677 USDSave up to $8,131 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
$2,677 USD