Oval|Natural|GIA

1.50ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 7551728271

Certificate GIA 7551728271

Diamond specifications and retailer prices

From $2,201 USD
As of November 6, 2026
Save $3,959 USD (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,212 USD 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
Color
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

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,160 USD|Low: $2,201 USD|High: $6,160 USD|Avg: $3,286 USD|+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$2,201 USD
Retailer 5$2,529 USD
Retailer 8$2,530 USD
Retailer 3$2,638 USD
Retailer 11$2,800 USD
Retailer 2$2,858 USD
Retailer 19$2,880 USD
Retailer 17$2,947 USD
Retailer 10$3,035 USD
Retailer 13$3,053 USD
Retailer 6$3,060 USD
Retailer 12$3,088 USD
Retailer 18$3,119 USD
Retailer 16$3,170 USD
Retailer 9$3,400 USD
Retailer 14$3,430 USD
Retailer 15$3,596 USD
Retailer 4$4,914 USD
NZ Jewellers$6,160 USD

23 data points across 19 retailers

21 retailers$2,201 USD to $6,160 USD

A
Cheapest Retailer
-
$2,201 USD
A
Retailer 2
-
$2,529 USD
View
A
Retailer 3
-
$2,530 USD
View
A
Retailer 4
-
$2,638 USD
View
A
Retailer 5
-
$2,800 USD
View
A
Retailer 6
-
$2,858 USD
View
A
Retailer 7
-
$2,880 USD
View
A
Retailer 8
-
$2,947 USD
View
Retailer 9
-
$3,035 USD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$3,053 USD
View
A
Retailer 11
-
$3,060 USD
View
A
Retailer 12
-
$3,088 USD
View
A
Retailer 13
-
$3,119 USD
View
Retailer 14
-
$3,123 USD
View
Price last confirmed 23 days ago
A
Retailer 15
-
$3,170 USD
View
A
Retailer 16
-
$3,400 USD
View
A
Retailer 17
-
$3,430 USD
View
A
Retailer 18
-
$3,596 USD
View
B+
Retailer 19
-
$4,914 USD
View
B
Retailer 20
-
$6,160 USD
View
Most Expensive
NZ Jewellers
b65d4127-8da9-4d77-a258-9453db5cf266 · Aug 30
$6,212 USD
View
Price last confirmed 68 days ago
20 more retailers have this diamond
Prices start from $2,201 USDSave up to $3,959 USD

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
$2,201 USD