Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 2516454924

Certificate GIA 2516454924

Diamond specifications and retailer prices

From $7,293 USD
As of October 28, 2026
Save $8,231 USD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $15,524 USD at NZ Jewellers · As of October 27, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2516454924. Listed at 16 retailers as of October 27, 2026, with prices from $7,293 to $15,524, a $8,231 spread on the same certified stone. NZ Jewellers lists it at $15,524. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.98°
Pavilion angle39.08°
OriginNatural
Grading LabGIA
CertificateGIA 2516454924
Dimensions8.72 × 6.35 × 4.16 mm
L/W Ratio1.37
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
8.72 mm6.35 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2516454924
Side View
Table 63.0%Crown 36.98°Girdle: THK-VTKPavilion 39.08°Culet: NDepth 65.5%

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: Oct 28
Current: $8,634 USD|Low: $7,139 USD|High: $13,091 USD|Avg: $8,902 USD|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 10$7,293 USD
Retailer 11$7,760 USD
Retailer 9$7,788 USD
Retailer 2$7,925 USD
Retailer 4$8,271 USD
Retailer 12$8,409 USD
Retailer 1$8,634 USD
Retailer 7$8,748 USD
Retailer 3$8,931 USD
Retailer 6$10,127 USD
Retailer 8$11,201 USD
Retailer 5$13,005 USD

42 data points across 12 retailers

16 retailers$7,293 USD to $15,524 USD

A
Cheapest Retailer
-
$7,293 USD
B+
Retailer 2
-
$7,760 USD
View
B+
Retailer 3
-
$7,788 USD
View
Final sale: no returns
B+
Retailer 4
-
$7,789 USD
View
B+
Retailer 5
-
$7,925 USD
View
B+
Retailer 6
-
$8,271 USD
View
B+
Retailer 7
-
$8,409 USD
View
B+
Retailer 8
-
$8,538 USD
View
B+
Retailer 9
-
$8,634 USD
£6,798 GBP
View
B+
Retailer 10
-
$8,748 USD
A$13,459 AUD
View
B+
Retailer 11
-
$8,931 USD
View
B
Retailer 12
-
$9,703 USD
View
B
Retailer 13
-
$10,127 USD
€9,645 EUR
View
B
Retailer 14
-
$11,201 USD
ZAR 180,960 ZAR
View
Price last confirmed 7 days ago
B
Retailer 15
-
$13,005 USD
£10,240 GBP
View
Most Expensive
B
NZ Jewellers
bc228933-8170-4d5c-84b9-6692ffa876f1 · Oct 27
$15,524 USD
View
15 more retailers have this diamond
Prices start from $7,293 USDSave up to $8,231 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
$7,293 USD