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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 $11,255 SGD
$8,804 USD
As of October 31, 2026
Save $10,084 SGD (47%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $21,339 SGD 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 2547510952. Listed at 27 retailers as of October 30, 2026, with prices from $11,255 to $21,339, a $10,084 spread on the same certified stone. NZ Jewellers lists it at $21,339. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $13,926 SGD|Low: $12,334 SGD|High: $20,238 SGD|Avg: $15,498 SGD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 7$12,334 SGD
Retailer 1$13,926 SGD
Retailer 8$14,084 SGD
Retailer 6$14,098 SGD
Retailer 4$14,732 SGD
Retailer 2$15,343 SGD
Retailer 5$18,810 SGD
Retailer 3$19,996 SGD

38 data points across 8 retailers

27 retailers$11,255 SGD to $21,339 SGD

B+
Cheapest Retailer
-
$11,255 SGD
$8,804 USD
B+
Retailer 2
-
$11,651 SGD
$9,114 USD
View
B+
Retailer 3
-
$11,880 SGD
$9,293 USD
View
B+
Retailer 4
-
$12,200 SGD
$9,543 USD
View
B+
Retailer 5
-
$12,328 SGD
CA$13,394 CAD
View
B+
Retailer 6
-
$12,334 SGD
$9,648 USD
View
Final sale: no returns
B+
Retailer 7
-
$12,663 SGD
$9,905 USD
View
B+
Retailer 8
-
$12,803 SGD
$10,015 USD
View
B+
Retailer 9
-
$13,657 SGD
$10,683 USD
View
B+
Retailer 10
-
$13,871 SGD
$10,850 USD
View
B+
Retailer 11
-
$13,926 SGD
£8,577 GBP
View
B+
Retailer 12
-
$14,084 SGD
$11,017 USD
View
Retailer 13
-
$14,098 SGD
A$16,966 AUD
View
Price last confirmed 9 days ago
B+
Retailer 14
-
$14,270 SGD
$11,162 USD
View
B+
Retailer 15
-
$14,732 SGD
£9,074 GBP
View
B+
Retailer 16
-
$14,780 SGD
$11,561 USD
View
B+
Retailer 17
-
$15,008 SGD
$11,740 USD
View
B+
Retailer 18
-
$15,008 SGD
$11,740 USD
View
B+
Retailer 19
-
$15,343 SGD
€11,430 EUR
View
B
Retailer 20
-
$15,507 SGD
$12,130 USD
View
B
Retailer 21
-
$15,584 SGD
$12,190 USD
View
B
Retailer 22
-
$16,004 SGD
$12,519 USD
View
B
Retailer 23
-
$16,410 SGD
$12,836 USD
View
Retailer 24
-
$16,848 SGD
$13,179 USD
View
Price last confirmed 9 days ago
B
Retailer 25
-
$18,810 SGD
ZAR 237,699 ZAR
View
B
Retailer 26
-
$19,996 SGD
£12,316 GBP
View
Most Expensive
B
NZ Jewellers
14b7eaaa-b1aa-4f7f-8bb9-08ca8103b316 · Oct 30
$21,339 SGD
$16,692 USD
View
26 more retailers have this diamond
Prices start from $11,255 SGDSave up to $10,084 SGD

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
$11,255 SGD