CaratHunter
Plans
Round|Natural|GIA

1.51ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 5241026924

Certificate GIA 5241026924

Diamond specifications and retailer prices

From $10,684 SGD
$8,357 USD
As of November 1, 2026
Save $8,910 SGD (45%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $19,594 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 5241026924. Listed at 21 retailers as of October 30, 2026, with prices from $10,684 to $19,594, a $8,910 spread on the same certified stone. NZ Jewellers lists it at $19,594. 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
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $19,594 SGD|Low: $10,777 SGD|High: $19,594 SGD|Avg: $14,643 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7$10,777 SGD
Retailer 8$11,306 SGD
Retailer 2$12,666 SGD
Retailer 6$12,926 SGD
Retailer 9$12,932 SGD
Retailer 10$13,081 SGD
Retailer 3$14,063 SGD
Retailer 5$17,271 SGD
Retailer 4$18,361 SGD
NZ Jewellers$19,594 SGD

43 data points across 10 retailers

21 retailers$10,684 SGD to $19,594 SGD

A
Cheapest Retailer
-
$10,684 SGD
$8,357 USD
A
Retailer 2
-
$10,777 SGD
$8,430 USD
View
B+
Retailer 3
-
$11,306 SGD
$8,844 USD
View
Final sale: no returns
B+
Retailer 4
-
$11,352 SGD
$8,880 USD
View
B+
Retailer 5
-
$11,395 SGD
CA$12,380 CAD
View
B+
Retailer 6
-
$12,666 SGD
£7,802 GBP
View
B+
Retailer 7
-
$12,735 SGD
$9,962 USD
View
Retailer 8
-
$12,926 SGD
A$15,556 AUD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$12,932 SGD
$10,116 USD
View
B+
Retailer 10
-
$13,081 SGD
$10,232 USD
View
B
Retailer 11
-
$13,547 SGD
$10,597 USD
View
B+
Retailer 12
-
$13,845 SGD
$10,830 USD
View
B+
Retailer 13
-
$13,845 SGD
$10,830 USD
View
B+
Retailer 14
-
$14,063 SGD
€10,477 EUR
View
B+
Retailer 15
-
$14,305 SGD
$11,190 USD
View
B+
Retailer 16
-
$14,695 SGD
$11,495 USD
View
B
Retailer 17
-
$15,043 SGD
$11,767 USD
View
Retailer 18
-
$15,472 SGD
$12,103 USD
View
Price last confirmed 9 days ago
B
Retailer 19
-
$17,271 SGD
ZAR 218,251 ZAR
View
B
Retailer 20
-
$18,361 SGD
£11,309 GBP
View
Most Expensive
B
NZ Jewellers
cbbe9cfe-acaf-44be-8157-92f430013637 · Oct 30
$19,594 SGD
$15,327 USD
View
20 more retailers have this diamond
Prices start from $10,684 SGDSave up to $8,910 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
$10,684 SGD