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Round|Natural|GIA

1.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6562410163

Certificate GIA 6562410163

Diamond specifications and retailer prices

From $4,340 USD
As of November 6, 2026
Save $5,324 USD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,664 USD 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 6562410163. Listed at 17 retailers as of November 5, 2026, with prices from $4,340 to $9,664, a $5,324 spread on the same certified stone. NZ Jewellers lists it at $9,664. 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
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6562410163
Dimensions7.31 × 7.36 × 4.57 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.31 mm7.36 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562410163
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
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: Nov 6
Current: $9,664 USD|Low: $4,340 USD|High: $9,664 USD|Avg: $5,747 USD
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 6, 2026
Retailer 4$4,340 USD
Retailer 12$4,380 USD
Retailer 6$4,481 USD
Retailer 18$4,495 USD
Retailer 20$4,610 USD
Retailer 14$4,619 USD
Retailer 3$5,235 USD
Retailer 22$5,235 USD
Retailer 10$5,331 USD
Retailer 21$5,546 USD
Retailer 11$5,549 USD
Retailer 13$5,598 USD
Retailer 9$5,869 USD
Retailer 5$5,910 USD
Retailer 7$5,910 USD
Retailer 19$6,040 USD
Retailer 8$6,110 USD
Retailer 17$6,184 USD
Retailer 2$6,216 USD
Retailer 15$7,653 USD
Retailer 16$8,489 USD
NZ Jewellers$9,664 USD

16 data points across 22 retailers

17 retailers$4,340 USD to $9,664 USD

A
Cheapest Retailer
-
$4,340 USD
A
Retailer 2
-
$4,481 USD
View
A
Retailer 3
-
$4,495 USD
View
A
Retailer 4
-
$4,610 USD
View
A
Retailer 5
-
$4,806 USD
View
B+
Retailer 6
-
$5,235 USD
View
B+
Retailer 7
-
$5,235 USD
View
B+
Retailer 8
-
$5,546 USD
View
B+
Retailer 9
-
$5,598 USD
View
B+
Retailer 10
-
$5,910 USD
View
B+
Retailer 11
-
$5,910 USD
View
B+
Retailer 12
-
$6,040 USD
View
B+
Retailer 13
-
$6,110 USD
View
B+
Retailer 14
-
$6,184 USD
View
B+
Retailer 15
-
$6,216 USD
View
B
Retailer 16
-
$8,489 USD
View
Most Expensive
B
NZ Jewellers
969cb67c-ae04-4e6f-9498-6321ccc71c7a · Nov 5
$9,664 USD
View
16 more retailers have this diamond
Prices start from $4,340 USDSave up to $5,324 USD

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
$4,340 USD