Round|Natural|GIA

1.51ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 1525339860

Certificate GIA 1525339860

Diamond specifications and retailer prices

From $8,469 SGD
$6,625 USD
As of October 30, 2026
Save $10,253 SGD (55%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $18,722 SGD at NZ Jewellers · As of September 14, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1525339860. Listed at 28 retailers as of October 30, 2026, with a 121% 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

1.51
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1525339860
Dimensions7.34 × 7.38 × 4.55 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
7.34 mm7.38 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1525339860
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.9%

Caratlytics Score

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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: $18,722 SGD|Low: $7,401 SGD|High: $18,722 SGD|Avg: $11,142 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 4$8,765 SGD
Retailer 8$8,881 SGD
Retailer 9$9,360 SGD
Retailer 12$9,362 SGD
Retailer 13$10,142 SGD
Retailer 10$10,298 SGD
Retailer 5$10,310 SGD
Retailer 2$10,361 SGD
Retailer 11$11,316 SGD
Retailer 6$11,635 SGD
Retailer 3$11,701 SGD
Retailer 7$15,684 SGD
NZ Jewellers$18,722 SGD

41 data points across 13 retailers

28 retailers$8,469 SGD to $18,722 SGD

A
Cheapest Retailer
-
$8,469 SGD
$6,625 USD
Retailer 2
-
$8,719 SGD
A$10,493 AUD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$8,765 SGD
$6,856 USD
View
A
Retailer 4
-
$8,881 SGD
$6,947 USD
View
A
Retailer 5
-
$8,992 SGD
$7,034 USD
View
A
Retailer 6
-
$9,360 SGD
$7,322 USD
View
Final sale: no returns
A
Retailer 7
-
$9,362 SGD
$7,323 USD
View
A
Retailer 8
-
$9,972 SGD
$7,800 USD
View
Retailer 9
-
$10,142 SGD
$7,933 USD
View
Price last confirmed 53 days ago
Retailer 10
-
$10,142 SGD
$7,933 USD
View
Price last confirmed 47 days ago
A
Retailer 11
-
$10,142 SGD
$7,933 USD
View
B+
Retailer 12
-
$10,298 SGD
$8,055 USD
View
Retailer 13
-
$10,310 SGD
$8,065 USD
View
Price last confirmed 8 days ago
A
Retailer 14
-
$10,361 SGD
£6,382 GBP
View
B+
Retailer 15
-
$10,361 SGD
$8,105 USD
View
B+
Retailer 16
-
$10,476 SGD
$8,195 USD
View
B+
Retailer 17
-
$10,969 SGD
$8,580 USD
View
B+
Retailer 18
-
$10,969 SGD
$8,580 USD
View
B+
Retailer 19
-
$11,316 SGD
$8,852 USD
View
B+
Retailer 20
-
$11,327 SGD
$8,860 USD
View
B+
Retailer 21
-
$11,635 SGD
€8,668 EUR
View
Retailer 22
-
$11,701 SGD
$9,153 USD
View
Price last confirmed 54 days ago
Retailer 23
-
$11,701 SGD
$9,153 USD
View
Price last confirmed 46 days ago
B+
Retailer 24
-
$11,701 SGD
$9,153 USD
View
B+
Retailer 25
-
$15,684 SGD
£9,660 GBP
View
Retailer 26
-
$18,722 SGD
$14,645 USD
View
Price last confirmed 59 days ago
B
Retailer 27
-
$18,722 SGD
$14,645 USD
View
Most Expensive
NZ Jewellers
56c3b2a2-e2db-4670-8242-ef152f7bc2de · Sep 14
$18,722 SGD
$14,645 USD
View
Price last confirmed 47 days ago
27 more retailers have this diamond
Prices start from $8,469 SGDSave up to $10,253 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.

A
1.51ct Round
$8,469 SGD