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Oval|Natural|GIA

1.50ct D SI1 Oval Natural Diamond

ID • D/SI1 • GIA 6545526638

Certificate GIA 6545526638

Diamond specifications and retailer prices

From $13,692 NZD
As of November 6, 2026
Save $16,159 NZD (54%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $29,851 NZD at NZ Jewellers · As of November 5, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545526638. Listed at 28 retailers as of November 5, 2026, with prices from $13,692 to $29,851, a $16,159 spread on the same certified stone. NZ Jewellers lists it at $29,851. 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

1.50
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.56°
Pavilion angle36.73°
OriginNatural
Grading LabGIA
CertificateGIA 6545526638
Dimensions8.60 × 6.26 × 4.07 mm
L/W Ratio1.37
Top View
8.60 mm6.26 mm1.50 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545526638
Side View
Table 64.0%Crown 41.56°Girdle: STK-VTKPavilion 36.73°Culet: NoneDepth 65.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $16,509 NZD|Low: $13,899 NZD|High: $25,139 NZD|Avg: $18,343 NZD|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3$13,899 NZD
Retailer 2$14,594 NZD
Retailer 7$15,952 NZD
Retailer 9$16,495 NZD
Retailer 1$16,509 NZD
Retailer 4$16,609 NZD
Retailer 5$19,392 NZD
Retailer 10$20,409 NZD
Retailer 6$21,775 NZD
Retailer 8$24,807 NZD

26 data points across 10 retailers

28 retailers$13,692 NZD to $29,851 NZD

A
Cheapest Retailer
-
$13,692 NZD
A
Retailer 2
-
$13,899 NZD
View
B+
Retailer 3
-
$14,594 NZD
View
Retailer 4
-
$15,146 NZD
View
Price last confirmed 26 days ago
B+
Retailer 5
-
$15,425 NZD
View
B+
Retailer 6
-
$15,910 NZD
View
B+
Retailer 7
-
$15,952 NZD
View
B+
Retailer 8
-
$16,334 NZD
View
B+
Retailer 9
-
$16,473 NZD
View
Final sale: no returns
Retailer 10
-
$16,475 NZD
View
Price last confirmed 9 days ago
Retailer 11
-
$16,495 NZD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
$16,509 NZD
View
B+
Retailer 13
-
$16,609 NZD
View
B+
Retailer 14
-
$17,839 NZD
View
B+
Retailer 15
-
$17,848 NZD
View
B
Retailer 16
-
$18,124 NZD
View
B+
Retailer 17
-
$18,252 NZD
View
B+
Retailer 18
-
$18,268 NZD
View
B+
Retailer 19
-
$18,311 NZD
View
B+
Retailer 20
-
$18,766 NZD
View
B+
Retailer 21
-
$19,392 NZD
View
B
Retailer 22
-
$20,593 NZD
View
Retailer 23
-
$21,340 NZD
View
Price last confirmed 67 days ago
B
Retailer 24
-
$21,775 NZD
View
B
Retailer 25
-
$24,807 NZD
View
Retailer 26
-
$25,778 NZD
View
Price last confirmed 69 days ago
B
Retailer 27
-
$26,267 NZD
View
Most Expensive
B
NZ Jewellers
fc839084-9101-4a39-9073-29773117fff1 · Nov 5
$29,851 NZD
$16,548 USD
View
27 more retailers have this diamond
Prices start from $13,692 NZDSave up to $16,159 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.

A
1.50ct Oval
$13,692 NZD