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1.51ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2547510952

Certificate GIA 2547510952

Diamond specifications and retailer prices

From $8,804 USD
As of October 29, 2026
Save $7,888 USD (47%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $16,692 USD at NZ Jewellers · As of October 27, 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 2547510952. Listed at 27 retailers as of October 27, 2026, with prices from $8,804 to $16,692, a $7,888 spread on the same certified stone. NZ Jewellers lists it at $16,692. 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
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2547510952
Dimensions7.26 × 7.31 × 4.56 mm
L/W Ratio1.01
Top View
7.26 mm7.31 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2547510952
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $11,590 USD|Low: $8,804 USD|High: $15,831 USD|Avg: $11,805 USD|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 9$8,804 USD
Retailer 7$9,648 USD
Retailer 4$10,827 USD
Retailer 8$11,017 USD
Retailer 5$11,028 USD
Retailer 1$11,590 USD
Retailer 3$12,035 USD
Retailer 6$14,537 USD
Retailer 2$15,725 USD

39 data points across 9 retailers

27 retailers$8,804 USD to $16,692 USD

B+
Cheapest Retailer
-
$8,804 USD
B+
Retailer 2
-
$9,114 USD
View
B+
Retailer 3
-
$9,293 USD
View
B+
Retailer 4
-
$9,543 USD
View
B+
Retailer 5
-
$9,644 USD
CA$13,394 CAD
View
B+
Retailer 6
-
$9,648 USD
View
Final sale: no returns
B+
Retailer 7
-
$9,905 USD
View
B+
Retailer 8
-
$10,015 USD
View
B+
Retailer 9
-
$10,683 USD
View
B+
Retailer 10
-
$10,827 USD
£8,525 GBP
View
B+
Retailer 11
-
$10,850 USD
View
B+
Retailer 12
-
$11,017 USD
View
B+
Retailer 13
-
$11,028 USD
A$16,966 AUD
View
B+
Retailer 14
-
$11,162 USD
View
B+
Retailer 15
-
$11,561 USD
View
B+
Retailer 16
-
$11,590 USD
£9,126 GBP
View
B+
Retailer 17
-
$11,740 USD
View
B+
Retailer 18
-
$11,740 USD
View
B+
Retailer 19
-
$12,035 USD
€11,462 EUR
View
B
Retailer 20
-
$12,130 USD
View
B
Retailer 21
-
$12,190 USD
View
B
Retailer 22
-
$12,519 USD
View
B
Retailer 23
-
$12,836 USD
View
B
Retailer 24
-
$13,179 USD
View
B
Retailer 25
-
$14,537 USD
ZAR 234,849 ZAR
View
Price last confirmed 11 days ago
B
Retailer 26
-
$15,725 USD
£12,382 GBP
View
Most Expensive
B
NZ Jewellers
14b7eaaa-b1aa-4f7f-8bb9-08ca8103b316 · Oct 27
$16,692 USD
View
26 more retailers have this diamond
Prices start from $8,804 USDSave up to $7,888 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+
1.51ct Round
$8,804 USD