CaratHunter
Plans
Round|Natural|GIA

1.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6535460829

Certificate GIA 6535460829

Diamond specifications and retailer prices

From $3,040 SGD
As of November 4, 2026
Save $9,564 SGD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $12,604 SGD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6535460829. Listed at 16 retailers as of November 4, 2026, with prices from $3,040 to $12,604, a $9,564 spread on the same certified stone. Wholesale Diamonds Direct lists it at $12,604. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6535460829
Dimensions7.38 × 7.33 × 4.55 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
7.38 mm7.33 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535460829
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.8%

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 4
Current: $8,918 SGD|Low: $3,040 SGD|High: $12,604 SGD|Avg: $6,346 SGD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Wholesale Diamonds Direct
November 6, 2026
Retailer 15$3,040 SGD
Retailer 7$3,409 SGD
Retailer 13$3,534 SGD
Retailer 14$3,671 SGD
Retailer 6$3,675 SGD
Retailer 8$3,997 SGD
Retailer 16$4,078 SGD
Retailer 9$6,448 SGD
Retailer 17$7,333 SGD
Retailer 10$7,357 SGD
Retailer 12$7,390 SGD
Retailer 18$8,204 SGD
Retailer 2$8,308 SGD
Retailer 3$8,775 SGD
Retailer 4$8,775 SGD
Retailer 11$8,894 SGD
Retailer 1$8,918 SGD
Retailer 5$9,069 SGD
Wholesale Diamonds Direct$12,604 SGD

28 data points across 19 retailers

16 retailers$3,040 SGD to $12,604 SGD

A
Cheapest Retailer
-
$3,040 SGD
A
Retailer 2
-
$3,409 SGD
View
A
Retailer 3
-
$3,534 SGD
View
A
Retailer 4
-
$3,671 SGD
View
Retailer 5
-
$3,675 SGD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$4,078 SGD
View
B+
Retailer 7
-
$7,333 SGD
View
B+
Retailer 8
-
$7,390 SGD
View
B+
Retailer 9
-
$8,204 SGD
View
B+
Retailer 10
-
$8,308 SGD
View
B
Retailer 11
-
$8,775 SGD
View
B
Retailer 12
-
$8,775 SGD
View
B+
Retailer 13
-
$8,894 SGD
View
B+
Retailer 14
-
$8,918 SGD
View
B
Retailer 15
-
$9,069 SGD
View
Most Expensive
B
Wholesale Diamonds Direct
623164163 · Nov 6
$12,604 SGD
$9,868 USD
View
15 more retailers have this diamond
Prices start from $3,040 SGDSave up to $9,564 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
$3,040 SGD