Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 2526595392

Certificate GIA 2526595392

Diamond specifications and retailer prices

From $3,773 USD
As of November 4, 2026
Save $4,600 USD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,732 USD at NZ Jewellers · As of September 29, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2526595392. Listed at 15 retailers as of November 4, 2026, with a 122% 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
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2526595392
Dimensions8.85 × 6.35 × 4.05 mm
L/W Ratio1.39
Top View
8.85 mm6.35 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2526595392
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.8%

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 4
Current: $8,664 USD|Low: $3,773 USD|High: $8,664 USD|Avg: $5,529 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
November 6, 2026
Retailer 12$3,773 USD
Retailer 8$4,002 USD
Retailer 9$4,118 USD
Retailer 10$4,730 USD
Retailer 11$4,760 USD
Retailer 2$5,114 USD
Retailer 3$5,360 USD
Retailer 4$5,360 USD
Retailer 13$5,540 USD
Retailer 6$5,932 USD
Retailer 5$6,208 USD
Retailer 7$8,373 USD
NZ Jewellers$8,664 USD

34 data points across 13 retailers

15 retailers$3,773 USD to $8,373 USD

A
Cheapest Retailer
-
$3,773 USD
A
Retailer 2
-
$4,002 USD
View
A
Retailer 3
-
$4,118 USD
View
A
Retailer 4
-
$4,350 USD
View
Retailer 5
-
$4,730 USD
View
Price last confirmed 36 days ago
Retailer 6
-
$4,730 USD
View
Price last confirmed 38 days ago
A
Retailer 7
-
$4,760 USD
View
A
Retailer 8
-
$5,114 USD
View
B+
Retailer 9
-
$5,360 USD
View
B+
Retailer 10
-
$5,360 USD
View
Retailer 11
-
$5,457 USD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
$5,540 USD
View
B+
Retailer 13
-
$5,932 USD
View
B
Retailer 14
-
$8,373 USD
View
Most Expensive
NZ Jewellers
4d9e76f9-591d-417f-888f-a841016249c6 · Sep 29
$8,732 USD
View
Price last confirmed 38 days ago
14 more retailers have this diamond
Prices start from $3,773 USDSave up to $4,600 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
$3,773 USD