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Oval|Natural|GIA

1.50ct K SI2 Oval Natural Diamond

GD • K/SI2 • GIA 6555433574

Certificate GIA 6555433574

Diamond specifications and retailer prices

From $3,231 AUD
As of November 6, 2026
Save $5,024 AUD (61%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,255 AUD 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6555433574. Listed at 16 retailers as of November 5, 2026, with prices from $3,231 to $8,255, a $5,024 spread on the same certified stone. NZ Jewellers lists it at $8,255. 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
K
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle41.2°
Pavilion angle37.1°
OriginNatural
Grading LabGIA
CertificateGIA 6555433574
Dimensions8.68 × 6.47 × 4.16 mm
L/W Ratio1.34
Girdle conditionFaceted
Top View
8.68 mm6.47 mm1.50 ctK / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6555433574
Side View
Table 61.0%Crown 41.2°Girdle: THN-THKPavilion 37.1°Culet: NDepth 64.3%

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 6
Current: $8,255 AUD|Low: $2,905 AUD|High: $8,383 AUD|Avg: $4,432 AUD|-1.5%
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
Retailer 19
November 6, 2026
Retailer 7$2,905 AUD
Retailer 4$3,046 AUD
Retailer 2$3,231 AUD
Retailer 16$3,302 AUD
Retailer 18$3,577 AUD
Retailer 5$3,669 AUD
Retailer 6$3,765 AUD
Retailer 17$3,895 AUD
Retailer 13$3,934 AUD
Retailer 9$3,949 AUD
Retailer 10$4,090 AUD
Retailer 8$4,100 AUD
Retailer 15$4,128 AUD
Retailer 14$4,178 AUD
Retailer 12$4,334 AUD
Retailer 19$4,606 AUD
Retailer 11$4,736 AUD
Retailer 3$6,926 AUD
NZ Jewellers$8,255 AUD

18 data points across 19 retailers

16 retailers$3,231 AUD to $8,255 AUD

Retailer 1
-
$2,905 AUD
Price last confirmed 10 days ago
Retailer 2
-
$3,046 AUD
View
Price last confirmed 11 days ago
B+
Retailer 3
-
$3,231 AUD
View
B+
Retailer 4
-
$3,302 AUD
View
Final sale: no returns
B+
Retailer 5
-
$3,577 AUD
View
B+
Retailer 6
-
$3,895 AUD
View
B+
Retailer 7
-
$3,934 AUD
View
Retailer 8
-
$3,949 AUD
View
Price last confirmed 12 days ago
Retailer 9
-
$4,090 AUD
View
Price last confirmed 10 days ago
Retailer 10
-
$4,100 AUD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
$4,128 AUD
View
B+
Retailer 12
-
$4,178 AUD
View
B+
Retailer 13
-
$4,334 AUD
View
Retailer 14
-
$4,606 AUD
View
Price last confirmed 11 days ago
Retailer 15
-
$6,926 AUD
View
Price last confirmed 11 days ago
Most Expensive
B
NZ Jewellers
406ebf10-0fc8-4e8c-be76-39ae57f5715c · Nov 5
$8,255 AUD
$5,672 USD
View
15 more retailers have this diamond
Prices start from $3,231 AUDSave up to $5,024 AUD

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
$3,231 AUD