Round|Natural|GIA

1.53ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1499026444

Certificate GIA 1499026444

Diamond specifications and retailer prices

From $8,739 USD
As of November 1, 2026
Save $6,818 USD (44%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $22,370 USD at NZ Jewellers · As of September 1, 2026
View at NZ Jewellers

About this 1.53ct natural round diamond

This 1.53ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1499026444. Listed at 18 retailers as of November 1, 2026, with a 78% 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

1.53
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1499026444
Dimensions7.33 × 7.36 × 4.56 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Top View
7.33 mm7.36 mm1.53 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1499026444
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 61.9%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $10,143 USD|Low: $9,250 USD|High: $14,753 USD|Avg: $11,434 USD|+0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 7$9,250 USD
Retailer 1$10,143 USD
Retailer 5$10,265 USD
Retailer 6$10,268 USD
Retailer 2$11,731 USD
Retailer 4$13,712 USD
Retailer 3$14,578 USD

42 data points across 7 retailers

18 retailers$8,739 USD to $15,557 USD

B+
Cheapest Retailer
-
$8,739 USD
B+
Retailer 2
-
$9,050 USD
View
B+
Retailer 3
-
$9,250 USD
View
Retailer 4
-
$9,334 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$10,112 USD
View
B+
Retailer 6
-
$10,143 USD
View
Retailer 7
-
$10,265 USD
View
Price last confirmed 14 days ago
B+
Retailer 8
-
$10,268 USD
View
B
Retailer 9
-
$10,760 USD
View
B+
Retailer 10
-
$11,668 USD
View
B+
Retailer 11
-
$11,708 USD
View
B+
Retailer 12
-
$11,731 USD
View
Retailer 13
-
$12,284 USD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$13,712 USD
View
B
Retailer 15
-
$14,578 USD
View
B
Retailer 16
-
$15,557 USD
View
Retailer 17
-
$17,765 USD
View
Price last confirmed 60 days ago
Most Expensive
NZ Jewellers
4d388928-3d01-4dd9-815b-ac10f785a0b4 · Sep 1
$22,370 USD
View
Price last confirmed 66 days ago
17 more retailers have this diamond
Prices start from $8,739 USDSave up to $6,818 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.

B+
1.53ct Round
$8,739 USD