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Round|Natural|GIA

1.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 1519562206

Certificate GIA 1519562206

Diamond specifications and retailer prices

From $7,416 NZD
As of November 6, 2026
Save $8,957 NZD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $16,373 NZD 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1519562206. Listed at 19 retailers as of November 5, 2026, with prices from $7,416 to $16,373, a $8,957 spread on the same certified stone. NZ Jewellers lists it at $16,373. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1519562206
Dimensions7.31 × 7.34 × 4.50 mm
L/W Ratio1.00
Star length45%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Top View
7.31 mm7.34 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1519562206
Side View
Table 61.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.4%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $12,922 NZD|Low: $7,416 NZD|High: $15,779 NZD|Avg: $11,149 NZD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5$7,416 NZD
Retailer 2$9,396 NZD
Retailer 3$10,373 NZD
Retailer 1$12,922 NZD
Retailer 4$15,549 NZD

44 data points across 5 retailers

19 retailers$7,416 NZD to $16,373 NZD

B+
Cheapest Retailer
-
$7,416 NZD
B+
Retailer 2
-
$7,519 NZD
View
B+
Retailer 3
-
$7,735 NZD
View
B+
Retailer 4
-
$7,829 NZD
View
B+
Retailer 5
-
$8,254 NZD
View
B+
Retailer 6
-
$8,786 NZD
View
Retailer 7
-
$8,870 NZD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$8,870 NZD
View
B
Retailer 9
-
$8,870 NZD
View
B
Retailer 10
-
$9,021 NZD
View
B
Retailer 11
-
$9,343 NZD
View
B
Retailer 12
-
$9,396 NZD
View
B
Retailer 13
-
$10,234 NZD
View
B
Retailer 14
-
$10,373 NZD
View
Retailer 15
-
$10,801 NZD
View
Price last confirmed 14 days ago
B
Retailer 16
-
$12,922 NZD
View
B
Retailer 17
-
$14,176 NZD
View
B
Retailer 18
-
$15,549 NZD
View
Most Expensive
C
NZ Jewellers
67ce5f8e-58e4-4c56-af8b-5abe8657d6f5 · Nov 5
$16,373 NZD
$9,204 USD
View
18 more retailers have this diamond
Prices start from $7,416 NZDSave up to $8,957 NZD

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
$7,416 NZD