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Oval|Natural|GIA

1.50ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 7551728271

Certificate GIA 7551728271

Diamond specifications and retailer prices

From $3,970 NZD
As of November 6, 2026
Save $7,142 NZD (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $11,206 NZD at NZ Jewellers · As of August 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551728271. Listed at 21 retailers as of November 5, 2026, with a 180% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551728271
Dimensions8.72 × 6.32 × 3.99 mm
L/W Ratio1.38
Top View
8.72 mm6.32 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7551728271
Side View
Table 60.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 63.1%

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: $11,112 NZD|Low: $3,970 NZD|High: $11,112 NZD|Avg: $5,928 NZD|+13.2%
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$3,970 NZD
Retailer 5$4,562 NZD
Retailer 8$4,564 NZD
Retailer 3$4,759 NZD
Retailer 11$5,051 NZD
Retailer 2$5,156 NZD
Retailer 19$5,195 NZD
Retailer 17$5,316 NZD
Retailer 10$5,475 NZD
Retailer 13$5,507 NZD
Retailer 6$5,520 NZD
Retailer 12$5,570 NZD
Retailer 18$5,626 NZD
Retailer 16$5,718 NZD
Retailer 9$6,133 NZD
Retailer 14$6,187 NZD
Retailer 15$6,487 NZD
Retailer 4$8,864 NZD
NZ Jewellers$11,112 NZD

23 data points across 19 retailers

21 retailers$3,970 NZD to $11,112 NZD

A
Cheapest Retailer
-
$3,970 NZD
A
Retailer 2
-
$4,562 NZD
View
A
Retailer 3
-
$4,564 NZD
View
A
Retailer 4
-
$4,759 NZD
View
A
Retailer 5
-
$5,051 NZD
View
A
Retailer 6
-
$5,156 NZD
View
A
Retailer 7
-
$5,195 NZD
View
A
Retailer 8
-
$5,316 NZD
View
Retailer 9
-
$5,475 NZD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$5,507 NZD
View
A
Retailer 11
-
$5,520 NZD
View
A
Retailer 12
-
$5,570 NZD
View
A
Retailer 13
-
$5,626 NZD
View
Retailer 14
-
$5,634 NZD
View
Price last confirmed 23 days ago
A
Retailer 15
-
$5,718 NZD
View
A
Retailer 16
-
$6,133 NZD
View
A
Retailer 17
-
$6,187 NZD
View
A
Retailer 18
-
$6,487 NZD
View
B+
Retailer 19
-
$8,864 NZD
View
B
Retailer 20
-
$11,112 NZD
View
Most Expensive
NZ Jewellers
b65d4127-8da9-4d77-a258-9453db5cf266 · Aug 30
$11,206 NZD
$6,212 USD
View
Price last confirmed 68 days ago
20 more retailers have this diamond
Prices start from $3,970 NZDSave up to $7,142 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
$3,970 NZD