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Round|Natural|GIA

1.51ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 1242017096

Certificate GIA 1242017096

Diamond specifications and retailer prices

From $12,548 NZD
$7,060 USD
As of November 1, 2026
Save $5,112 NZD (29%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $27,703 NZD at NZ Jewellers · As of September 28, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1242017096. Listed at 14 retailers as of November 1, 2026, with a 41% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1242017096
Dimensions7.27 × 7.31 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
7.27 mm7.31 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242017096
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

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 1
Current: $16,172 NZD|Low: $12,548 NZD|High: $23,362 NZD|Avg: $16,119 NZD|+6.2%
Retailer 1
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 2, 2026
Retailer 4$12,548 NZD
Retailer 6$13,327 NZD
Retailer 5$13,599 NZD
Retailer 9$13,852 NZD
Retailer 2$14,760 NZD
Retailer 14$15,356 NZD
Retailer 1$16,172 NZD
Retailer 10$16,458 NZD
Retailer 11$16,458 NZD
Retailer 12$17,009 NZD
Retailer 7$17,122 NZD
Retailer 3$17,659 NZD
Retailer 13$18,239 NZD
Retailer 8$23,362 NZD

38 data points across 14 retailers

14 retailers$12,548 NZD to $17,659 NZD

B+
Cheapest Retailer
-
$12,548 NZD
$7,060 USD
B+
Retailer 2
-
$13,327 NZD
$7,498 USD
View
B+
Retailer 3
-
$13,599 NZD
CA$10,627 CAD
View
Retailer 4
-
$15,006 NZD
$8,443 USD
View
Price last confirmed 32 days ago
Retailer 5
-
$15,237 NZD
$8,573 USD
View
Price last confirmed 34 days ago
B+
Retailer 6
-
$15,356 NZD
$8,640 USD
View
B
Retailer 7
-
$15,903 NZD
$8,948 USD
View
B+
Retailer 8
-
$16,172 NZD
£7,165 GBP
View
B+
Retailer 9
-
$17,122 NZD
€9,175 EUR
View
Retailer 10
-
$17,314 NZD
$9,742 USD
View
Price last confirmed 34 days ago
B
Retailer 11
-
$17,659 NZD
$9,936 USD
View
Retailer 12
-
$18,239 NZD
$10,262 USD
View
Price last confirmed 32 days ago
Retailer 13
-
$23,362 NZD
£10,350 GBP
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
cd07d860-0138-4b01-aa21-a8bee6ea6b1c · Sep 28
$27,703 NZD
$15,587 USD
View
Price last confirmed 35 days ago
13 more retailers have this diamond
Prices start from $12,548 NZDSave up to $5,112 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
$12,548 NZD