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Round|Natural|GIA

1.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6492695970

Certificate GIA 6492695970

Diamond specifications and retailer prices

From $6,687 SGD
As of November 4, 2026
Save $8,098 SGD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $14,785 SGD at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6492695970. Listed at 18 retailers as of November 4, 2026, with prices from $6,687 to $14,785, a $8,098 spread on the same certified stone. NZ Jewellers lists it at $14,785. 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
FluorescenceFaint
Crown angle32°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6492695970
Dimensions7.45 × 7.42 × 4.48 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.45 mm7.42 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6492695970
Side View
Table 58.0%Crown 32°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.4%

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 4
Current: $14,785 SGD|Low: $6,417 SGD|High: $14,785 SGD|Avg: $8,907 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
Retailer 14
November 6, 2026
Retailer 10$6,687 SGD
Retailer 14$6,789 SGD
Retailer 12$6,984 SGD
Retailer 5$7,393 SGD
Retailer 3$7,891 SGD
Retailer 6$8,009 SGD
Retailer 11$8,009 SGD
Retailer 13$8,009 SGD
Retailer 2$8,338 SGD
Retailer 8$9,054 SGD
Retailer 7$9,152 SGD
Retailer 4$9,745 SGD
Retailer 9$12,988 SGD
NZ Jewellers$14,785 SGD

43 data points across 14 retailers

18 retailers$6,687 SGD to $14,785 SGD

A
Cheapest Retailer
-
$6,687 SGD
A
Retailer 2
-
$6,789 SGD
View
A
Retailer 3
-
$6,984 SGD
View
B+
Retailer 4
-
$7,258 SGD
View
B+
Retailer 5
-
$7,393 SGD
View
Final sale: no returns
B+
Retailer 6
-
$7,891 SGD
View
B+
Retailer 7
-
$8,009 SGD
View
Retailer 8
-
$8,009 SGD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$8,009 SGD
View
B+
Retailer 10
-
$8,338 SGD
View
B+
Retailer 11
-
$8,788 SGD
View
B+
Retailer 12
-
$8,788 SGD
View
B+
Retailer 13
-
$9,054 SGD
View
B
Retailer 14
-
$9,082 SGD
View
B
Retailer 15
-
$9,152 SGD
View
Retailer 16
-
$9,745 SGD
View
Price last confirmed 14 days ago
B
Retailer 17
-
$12,988 SGD
View
Most Expensive
B
NZ Jewellers
a8bcc0aa-6120-4e93-99b0-72c672bdba76 · Nov 5
$14,785 SGD
$11,575 USD
View
17 more retailers have this diamond
Prices start from $6,687 SGDSave up to $8,098 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
$6,687 SGD