Oval|Natural|GIA

1.50ct F SI1 Oval Natural Diamond

VG • F/SI1 • GIA 1428798393

Certificate GIA 1428798393

Diamond specifications and retailer prices

From $14,423 NZD
$8,115 USD
As of November 1, 2026
Save $11,764 NZD (45%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $26,187 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct natural oval sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1428798393. Listed at 17 retailers as of October 30, 2026, with prices from $14,423 to $26,187, a $11,764 spread on the same certified stone. NZ Jewellers lists it at $26,187. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1428798393
Dimensions9.23 × 6.16 × 3.90 mm
L/W Ratio1.50
Top View
9.23 mm6.16 mm1.50 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1428798393
Side View
Table 56.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.3%

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: $26,187 NZD|Low: $14,423 NZD|High: $26,187 NZD|Avg: $18,982 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 2, 2026
Retailer 9$14,423 NZD
Retailer 12$15,596 NZD
Retailer 11$15,843 NZD
Retailer 4$17,021 NZD
Retailer 5$17,182 NZD
Retailer 8$17,263 NZD
Retailer 10$17,282 NZD
Retailer 2$18,841 NZD
Retailer 3$19,639 NZD
Retailer 7$23,082 NZD
Retailer 6$24,538 NZD
NZ Jewellers$26,187 NZD

45 data points across 12 retailers

17 retailers$14,423 NZD to $26,187 NZD

B+
Cheapest Retailer
-
$14,423 NZD
$8,115 USD
B+
Retailer 2
-
$14,711 NZD
$8,277 USD
View
B+
Retailer 3
-
$15,596 NZD
$8,775 USD
View
B+
Retailer 4
-
$15,711 NZD
$8,840 USD
View
B+
Retailer 5
-
$15,843 NZD
$8,914 USD
View
B
Retailer 6
-
$17,021 NZD
$9,577 USD
View
B+
Retailer 7
-
$17,182 NZD
£7,612 GBP
View
Retailer 8
-
$17,263 NZD
A$14,943 AUD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$17,282 NZD
$9,724 USD
View
B
Retailer 10
-
$18,537 NZD
$10,430 USD
View
B
Retailer 11
-
$18,537 NZD
$10,430 USD
View
B
Retailer 12
-
$18,841 NZD
€10,096 EUR
View
B
Retailer 13
-
$19,159 NZD
$10,780 USD
View
B
Retailer 14
-
$19,639 NZD
$11,050 USD
View
B
Retailer 15
-
$23,082 NZD
ZAR 209,809 ZAR
View
B
Retailer 16
-
$24,538 NZD
£10,871 GBP
View
Most Expensive
B
NZ Jewellers
b2927d36-a296-4b92-9ed9-890fce067f59 · Oct 30
$26,187 NZD
$14,734 USD
View
16 more retailers have this diamond
Prices start from $14,423 NZDSave up to $11,764 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+
1.50ct Oval
$14,423 NZD