Round|Natural|GIA

1.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2436486853

Certificate GIA 2436486853

Diamond specifications and retailer prices

From $8,045 USD
As of November 1, 2026
Save $7,008 USD (47%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $15,053 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 2436486853. Listed at 17 retailers as of November 1, 2026, with prices from $8,045 to $15,053, a $7,008 spread on the same certified stone. NZ Jewellers lists it at $15,053. 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 angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2436486853
Dimensions7.36 × 7.32 × 4.54 mm
L/W Ratio1.01
Top View
7.36 mm7.32 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2436486853
Side View
Table 55.0%Crown 34°Girdle: THN-THKPavilion 40.6°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $15,053 USD|Low: $8,045 USD|High: $15,053 USD|Avg: $11,013 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$8,045 USD
Retailer 7$9,032 USD
Retailer 2$9,714 USD
Retailer 9$9,785 USD
Retailer 6$9,935 USD
Retailer 3$10,773 USD
Retailer 8$11,290 USD
Retailer 4$14,067 USD
NZ Jewellers$15,053 USD

42 data points across 9 retailers

17 retailers$8,045 USD to $15,053 USD

B+
Cheapest Retailer
-
$8,045 USD
B+
Retailer 2
-
$8,205 USD
View
B
Retailer 3
-
$8,457 USD
View
B
Retailer 4
-
$8,751 USD
View
Retailer 5
-
$9,032 USD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$9,714 USD
View
B
Retailer 7
-
$9,785 USD
View
B
Retailer 8
-
$9,935 USD
View
B
Retailer 9
-
$10,405 USD
View
B
Retailer 10
-
$10,640 USD
View
B
Retailer 11
-
$10,640 USD
View
B
Retailer 12
-
$10,773 USD
View
B
Retailer 13
-
$11,000 USD
View
B
Retailer 14
-
$11,290 USD
View
Retailer 15
-
$11,887 USD
View
Price last confirmed 14 days ago
B
Retailer 16
-
$14,067 USD
View
Most Expensive
B
NZ Jewellers
0c32f121-0fbc-460c-a3f1-404ed955b21d · Nov 5
$15,053 USD
View
16 more retailers have this diamond
Prices start from $8,045 USDSave up to $7,008 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.

B+
1.51ct Round
$8,045 USD