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1.51ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 5241026924

Certificate GIA 5241026924

Diamond specifications and retailer prices

From $8,357 USD
As of October 30, 2026
Save $6,970 USD (45%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $15,327 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct 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 5241026924. Listed at 21 retailers as of October 30, 2026, with prices from $8,357 to $15,327, a $6,970 spread on the same certified stone. NZ Jewellers lists it at $15,327. 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

1.51
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5241026924
Dimensions7.28 × 7.32 × 4.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
7.28 mm7.32 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5241026924
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $15,327 USD|Low: $8,040 USD|High: $15,327 USD|Avg: $10,903 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 3$8,357 USD
Retailer 9$8,430 USD
Retailer 10$8,844 USD
Retailer 2$9,908 USD
Retailer 4$9,962 USD
Retailer 7$10,111 USD
Retailer 11$10,116 USD
Retailer 12$10,232 USD
Retailer 5$11,080 USD
Retailer 8$13,271 USD
Retailer 6$14,439 USD
NZ Jewellers$15,327 USD

43 data points across 12 retailers

21 retailers$8,357 USD to $15,327 USD

A
Cheapest Retailer
-
$8,357 USD
Retailer 2
-
$8,430 USD
View
Price last confirmed 10 days ago
B+
Retailer 3
-
$8,844 USD
View
Final sale: no returns
B+
Retailer 4
-
$8,880 USD
View
B+
Retailer 5
-
$8,914 USD
CA$12,380 CAD
View
B+
Retailer 6
-
$9,908 USD
£7,802 GBP
View
B+
Retailer 7
-
$9,962 USD
View
Retailer 8
-
$10,111 USD
A$15,556 AUD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
$10,116 USD
View
B+
Retailer 10
-
$10,232 USD
View
B
Retailer 11
-
$10,597 USD
View
B+
Retailer 12
-
$10,830 USD
View
B+
Retailer 13
-
$10,830 USD
View
B+
Retailer 14
-
$11,080 USD
€10,552 EUR
View
B+
Retailer 15
-
$11,190 USD
View
B+
Retailer 16
-
$11,495 USD
View
B
Retailer 17
-
$11,767 USD
View
Retailer 18
-
$12,103 USD
View
Price last confirmed 8 days ago
Retailer 19
-
$13,271 USD
ZAR 214,392 ZAR
View
Price last confirmed 9 days ago
B
Retailer 20
-
$14,439 USD
£11,369 GBP
View
Most Expensive
B
NZ Jewellers
cbbe9cfe-acaf-44be-8157-92f430013637 · Oct 30
$15,327 USD
View
20 more retailers have this diamond
Prices start from $8,357 USDSave up to $6,970 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
1.51ct Round
$8,357 USD