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Round|Natural|GIA

1.51ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 3545894934

Certificate GIA 3545894934

Diamond specifications and retailer prices

From $5,908 SGD
As of November 5, 2026
Save $6,598 SGD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $12,506 SGD at NZ Jewellers · As of November 7, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 3545894934. Listed at 21 retailers as of November 5, 2026, with prices from $5,908 to $12,506, a $6,598 spread on the same certified stone. NZ Jewellers lists it at $12,506. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle38.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 3545894934
Dimensions7.06 × 7.17 × 4.63 mm
L/W Ratio1.02
Top View
7.06 mm7.17 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 3545894934
Side View
Table 56.0%Crown 38.5°Girdle: MED-THKPavilion 40.2°Culet: NDepth 65.0%

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 5
Current: $7,174 SGD|Low: $5,731 SGD|High: $11,135 SGD|Avg: $7,363 SGD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 12$5,908 SGD
Retailer 10$5,979 SGD
Retailer 11$6,252 SGD
Retailer 3$6,357 SGD
Retailer 4$6,535 SGD
Retailer 1$7,174 SGD
Retailer 2$7,488 SGD
Retailer 5$7,649 SGD
Retailer 8$8,106 SGD
Retailer 7$8,129 SGD
Retailer 6$9,122 SGD
Retailer 9$10,986 SGD

37 data points across 12 retailers

21 retailers$5,908 SGD to $12,506 SGD

B+
Cheapest Retailer
-
$5,908 SGD
A
Retailer 2
-
$5,979 SGD
View
B+
Retailer 3
-
$6,252 SGD
View
Final sale: no returns
B+
Retailer 4
-
$6,357 SGD
View
B+
Retailer 5
-
$6,535 SGD
View
Retailer 6
-
$6,775 SGD
View
Price last confirmed 51 days ago
B+
Retailer 7
-
$6,775 SGD
View
Retailer 8
-
$6,775 SGD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$6,775 SGD
View
B+
Retailer 10
-
$7,174 SGD
View
Retailer 11
-
$7,488 SGD
View
Price last confirmed 29 days ago
B+
Retailer 12
-
$7,649 SGD
View
Retailer 13
-
$7,816 SGD
View
Price last confirmed 46 days ago
B+
Retailer 14
-
$7,816 SGD
View
B+
Retailer 15
-
$8,106 SGD
View
B
Retailer 16
-
$8,129 SGD
View
Retailer 17
-
$8,248 SGD
View
Price last confirmed 15 days ago
B
Retailer 18
-
$9,122 SGD
View
B
Retailer 19
-
$10,986 SGD
View
Retailer 20
-
$12,506 SGD
View
Price last confirmed 49 days ago
Most Expensive
C
NZ Jewellers
2e0273fb-c338-4381-9582-6e861e1a2774 · Nov 7
$12,506 SGD
$9,758 USD
View
20 more retailers have this diamond
Prices start from $5,908 SGDSave up to $6,598 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
$5,908 SGD