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Oval|Natural|GIA

1.50ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 2306421205

Certificate GIA 2306421205

Diamond specifications and retailer prices

From $19,266 NZD
As of November 6, 2026
Save $17,323 NZD (47%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $36,589 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 2306421205. Listed at 21 retailers as of November 5, 2026, with prices from $19,266 to $36,589, a $17,323 spread on the same certified stone. NZ Jewellers lists it at $36,589. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2306421205
Dimensions8.48 × 6.42 × 4.05 mm
L/W Ratio1.32
Top View
8.48 mm6.42 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2306421205
Side View
Table 62.0%CrownGirdle: VTN-THKPavilionCulet: NoneDepth 63.1%

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 6
Current: $26,411 NZD|Low: $19,266 NZD|High: $34,698 NZD|Avg: $25,237 NZD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$19,266 NZD
Retailer 6$19,374 NZD
Retailer 7$21,953 NZD
Retailer 3$23,189 NZD
Retailer 5$23,898 NZD
Retailer 1$26,411 NZD
Retailer 2$32,028 NZD
Retailer 4$34,195 NZD

46 data points across 8 retailers

21 retailers$19,266 NZD to $36,589 NZD

B+
Cheapest Retailer
-
$19,266 NZD
Retailer 2
-
$19,374 NZD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$20,370 NZD
View
B+
Retailer 4
-
$20,384 NZD
View
B+
Retailer 5
-
$20,676 NZD
View
B
Retailer 6
-
$20,987 NZD
View
B
Retailer 7
-
$21,611 NZD
View
Retailer 8
-
$21,953 NZD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$23,189 NZD
View
B
Retailer 10
-
$23,416 NZD
View
B
Retailer 11
-
$23,783 NZD
View
Retailer 12
-
$23,898 NZD
View
Price last confirmed 14 days ago
B
Retailer 13
-
$24,697 NZD
View
B
Retailer 14
-
$25,327 NZD
View
B
Retailer 15
-
$25,327 NZD
View
B
Retailer 16
-
$25,424 NZD
View
B
Retailer 17
-
$26,175 NZD
View
B
Retailer 18
-
$26,411 NZD
View
B
Retailer 19
-
$32,028 NZD
View
B
Retailer 20
-
$34,195 NZD
View
Most Expensive
B
NZ Jewellers
4dee6b99-1099-4e4b-8a60-e1a213751468 · Nov 5
$36,589 NZD
$20,283 USD
View
20 more retailers have this diamond
Prices start from $19,266 NZDSave up to $17,323 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
$19,266 NZD