Oval|Natural|GIA

1.51ct L SI1 Oval Natural Diamond

EX • L/SI1 • GIA 2566045185

Certificate GIA 2566045185

Diamond specifications and retailer prices

From $1,868 USD
As of November 6, 2026
Save $3,383 USD (64%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,394 USD at NZ Jewellers · As of August 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded L 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 2566045185. Listed at 19 retailers as of November 5, 2026, with a 181% 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

1.51
Carat
L
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566045185
Dimensions8.88 × 6.36 × 4.00 mm
L/W Ratio1.40
Top View
8.88 mm6.36 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566045185
Side View
Table 61.0%CrownGirdle: SLI-VTKPavilionCulet: NoneDepth 62.9%

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: $5,251 USD|Low: $1,868 USD|High: $5,709 USD|Avg: $2,862 USD|-8.0%
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
November 6, 2026
Retailer 16$1,868 USD
Retailer 3$2,170 USD
Retailer 14$2,269 USD
Retailer 8$2,431 USD
Retailer 2$2,470 USD
Retailer 13$2,490 USD
Retailer 12$2,512 USD
Retailer 7$2,585 USD
Retailer 5$2,608 USD
Retailer 15$2,628 USD
Retailer 9$2,652 USD
Retailer 10$2,658 USD
Retailer 4$2,898 USD
Retailer 11$3,066 USD
Retailer 6$3,227 USD
NZ Jewellers$5,251 USD

25 data points across 16 retailers

19 retailers$1,868 USD to $5,251 USD

A
Cheapest Retailer
-
$1,868 USD
A
Retailer 2
-
$2,170 USD
View
A
Retailer 3
-
$2,269 USD
View
A
Retailer 4
-
$2,431 USD
View
A
Retailer 5
-
$2,470 USD
View
B+
Retailer 6
-
$2,490 USD
View
B+
Retailer 7
-
$2,512 USD
View
Retailer 8
-
$2,585 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$2,608 USD
View
B+
Retailer 10
-
$2,628 USD
View
B+
Retailer 11
-
$2,652 USD
View
B+
Retailer 12
-
$2,658 USD
View
Retailer 13
-
$2,731 USD
View
Price last confirmed 23 days ago
B+
Retailer 14
-
$2,898 USD
View
B+
Retailer 15
-
$3,066 USD
View
Retailer 16
-
$3,151 USD
View
Price last confirmed 23 days ago
B+
Retailer 17
-
$3,227 USD
View
B
Retailer 18
-
$5,251 USD
View
Most Expensive
NZ Jewellers
7afac1a4-437f-4dfb-b9d8-3add4c558d30 · Aug 30
$5,394 USD
View
Price last confirmed 68 days ago
18 more retailers have this diamond
Prices start from $1,868 USDSave up to $3,383 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
1.51ct Oval
$1,868 USD