CaratHunter
Plans
Oval|Natural|GIA

1.50ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 2564543888

Certificate GIA 2564543888

Diamond specifications and retailer prices

From $4,288 USD
As of November 6, 2026
Save $5,076 USD (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $9,364 USD 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2564543888. Listed at 22 retailers as of November 5, 2026, with prices from $4,288 to $9,364, a $5,076 spread on the same certified stone. NZ Jewellers lists it at $9,364. 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
SymmetryExcellent
FluorescenceFaint
Crown angle41.92°
Pavilion angle38.57°
OriginNatural
Grading LabGIA
CertificateGIA 2564543888
Dimensions8.42 × 6.04 × 3.97 mm
L/W Ratio1.39
Culet sizeLarge
Key to symbols
Twinning Wisp, Crystal, Indented Natural
Top View
8.42 mm6.04 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2564543888
Side View
Table 53.0%Crown 41.92°Girdle: THK-ETKPavilion 38.57°Culet: LargeDepth 65.7%

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: $9,364 USD|Low: $4,249 USD|High: $9,364 USD|Avg: $6,065 USD
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
Retailer 20
Retailer 21
Retailer 22
November 6, 2026
Retailer 20$4,288 USD
Retailer 2$4,330 USD
Retailer 3$4,725 USD
Retailer 8$4,780 USD
Retailer 12$4,883 USD
Retailer 18$4,942 USD
Retailer 22$5,134 USD
Retailer 10$5,235 USD
Retailer 16$5,376 USD
Retailer 14$5,452 USD
Retailer 4$5,599 USD
Retailer 6$5,599 USD
Retailer 21$5,599 USD
Retailer 9$5,752 USD
Retailer 5$5,852 USD
Retailer 13$6,300 USD
Retailer 11$6,460 USD
Retailer 17$6,831 USD
Retailer 7$8,137 USD
Retailer 15$8,365 USD
Retailer 19$8,893 USD
NZ Jewellers$9,364 USD

24 data points across 22 retailers

22 retailers$4,288 USD to $9,364 USD

B+
Cheapest Retailer
-
$4,288 USD
B+
Retailer 2
-
$4,330 USD
View
Retailer 3
-
$4,725 USD
View
Price last confirmed 16 days ago
B+
Retailer 4
-
$4,780 USD
View
B+
Retailer 5
-
$4,883 USD
View
B+
Retailer 6
-
$4,942 USD
View
B+
Retailer 7
-
$5,134 USD
View
B
Retailer 8
-
$5,235 USD
View
B
Retailer 9
-
$5,376 USD
View
Retailer 10
-
$5,452 USD
View
Price last confirmed 22 days ago
B
Retailer 11
-
$5,599 USD
View
Retailer 12
-
$5,599 USD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$5,599 USD
View
B
Retailer 14
-
$5,752 USD
View
B
Retailer 15
-
$5,852 USD
View
B
Retailer 16
-
$6,300 USD
View
B
Retailer 17
-
$6,460 USD
View
B
Retailer 18
-
$6,831 USD
View
B
Retailer 19
-
$8,137 USD
View
B
Retailer 20
-
$8,365 USD
View
B
Retailer 21
-
$8,893 USD
View
Most Expensive
C
NZ Jewellers
6472b515-dd9f-4a76-be3e-566085752808 · Nov 5
$9,364 USD
View
21 more retailers have this diamond
Prices start from $4,288 USDSave up to $5,076 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.

B+
1.50ct Oval
$4,288 USD