CaratHunter
Plans
Round|Natural|GIA

1.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2235864871

Certificate GIA 2235864871

Diamond specifications and retailer prices

From $10,188 NZD
As of November 4, 2026
Save $11,379 NZD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $21,567 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2235864871. Listed at 17 retailers as of November 4, 2026, with prices from $10,188 to $21,567, a $11,379 spread on the same certified stone. NZ Jewellers lists it at $21,567. 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
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2235864871
Dimensions7.30 × 7.26 × 4.58 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.30 mm7.26 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235864871
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.9%

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 4
Current: $21,567 NZD|Low: $9,884 NZD|High: $21,567 NZD|Avg: $14,120 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$10,782 NZD
Retailer 3$11,682 NZD
Retailer 10$11,682 NZD
Retailer 11$11,682 NZD
Retailer 5$12,164 NZD
Retailer 2$12,506 NZD
Retailer 6$13,253 NZD
Retailer 12$13,481 NZD
Retailer 4$15,373 NZD
Retailer 7$17,924 NZD
Retailer 8$18,696 NZD
NZ Jewellers$21,567 NZD

40 data points across 12 retailers

17 retailers$10,188 NZD to $21,567 NZD

B+
Cheapest Retailer
-
$10,188 NZD
B+
Retailer 2
-
$10,582 NZD
View
B+
Retailer 3
-
$10,782 NZD
View
Final sale: no returns
B+
Retailer 4
-
$11,682 NZD
View
Retailer 5
-
$11,682 NZD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$11,682 NZD
View
B+
Retailer 7
-
$11,899 NZD
View
B+
Retailer 8
-
$12,164 NZD
View
B+
Retailer 9
-
$12,506 NZD
View
B
Retailer 10
-
$12,988 NZD
View
B
Retailer 11
-
$12,988 NZD
View
B
Retailer 12
-
$13,253 NZD
View
B
Retailer 13
-
$13,421 NZD
View
B
Retailer 14
-
$13,481 NZD
View
B
Retailer 15
-
$17,924 NZD
View
B
Retailer 16
-
$18,696 NZD
View
Most Expensive
B
NZ Jewellers
6cca4859-36cc-4e7e-8995-258bec1d02d7 · Nov 5
$21,567 NZD
$11,956 USD
View
16 more retailers have this diamond
Prices start from $10,188 NZDSave up to $11,379 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
$10,188 NZD