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Oval|Natural|GIA

1.50ct I SI1 Oval Natural Diamond

VG • I/SI1 • GIA 6512264839

Certificate GIA 6512264839

Diamond specifications and retailer prices

From $12,179 NZD
$6,864 USD
As of November 1, 2026
Save $13,836 NZD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $26,015 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6512264839. Listed at 21 retailers as of October 30, 2026, with prices from $12,179 to $26,015, a $13,836 spread on the same certified stone. NZ Jewellers lists it at $26,015. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.3°
Pavilion angle38.95°
OriginNatural
Grading LabGIA
CertificateGIA 6512264839
Dimensions8.79 × 6.40 × 3.99 mm
L/W Ratio1.37
Top View
8.79 mm6.40 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6512264839
Side View
Table 56.0%Crown 40.3°Girdle: MED-THKPavilion 38.95°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: $26,015 NZD|Low: $12,179 NZD|High: $26,015 NZD|Avg: $15,520 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 7$12,179 NZD
Retailer 10$12,179 NZD
Retailer 4$12,988 NZD
Retailer 6$13,007 NZD
Retailer 12$13,584 NZD
Retailer 3$13,856 NZD
Retailer 8$13,942 NZD
Retailer 5$14,091 NZD
Retailer 9$14,159 NZD
Retailer 16$14,308 NZD
Retailer 15$14,730 NZD
Retailer 2$14,758 NZD
Retailer 17$14,915 NZD
Retailer 18$16,260 NZD
Retailer 11$16,991 NZD
Retailer 14$19,108 NZD
Retailer 13$21,677 NZD
NZ Jewellers$26,015 NZD

31 data points across 18 retailers

21 retailers$12,179 NZD to $26,015 NZD

B+
Cheapest Retailer
-
$12,179 NZD
$6,864 USD
B+
Retailer 2
-
$12,179 NZD
$6,864 USD
View
B
Retailer 3
-
$12,988 NZD
$7,320 USD
View
B
Retailer 4
-
$13,007 NZD
$7,331 USD
View
B
Retailer 5
-
$13,116 NZD
$7,392 USD
View
B+
Retailer 6
-
$13,584 NZD
£6,028 GBP
View
B
Retailer 7
-
$13,856 NZD
$7,809 USD
View
B
Retailer 8
-
$13,942 NZD
$7,858 USD
View
B
Retailer 9
-
$14,091 NZD
$7,942 USD
View
B
Retailer 10
-
$14,308 NZD
$8,064 USD
View
Retailer 11
-
$14,730 NZD
A$12,772 AUD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$14,758 NZD
£6,550 GBP
View
B
Retailer 13
-
$14,886 NZD
$8,390 USD
View
B
Retailer 14
-
$14,886 NZD
$8,390 USD
View
B
Retailer 15
-
$14,915 NZD
$8,406 USD
View
B
Retailer 16
-
$15,383 NZD
$8,670 USD
View
B
Retailer 17
-
$16,260 NZD
$9,164 USD
View
B
Retailer 18
-
$16,991 NZD
€9,120 EUR
View
B
Retailer 19
-
$19,108 NZD
ZAR 173,981 ZAR
View
B
Retailer 20
-
$21,677 NZD
£9,620 GBP
View
Most Expensive
C
NZ Jewellers
7de86b7f-e54d-441b-bb4c-d97dde520640 · Oct 30
$26,015 NZD
$14,662 USD
View
20 more retailers have this diamond
Prices start from $12,179 NZDSave up to $13,836 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
$12,179 NZD