Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 1528318853

Certificate GIA 1528318853

Diamond specifications and retailer prices

From €5,544 EUR
₹589,890 INR
As of October 30, 2026
Save €3,898 EUR (41%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €10,662 EUR at NZ Jewellers · As of September 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 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 1528318853. Listed at 14 retailers as of October 29, 2026, with a 70% 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36.8°
Pavilion angle34.6°
OriginNatural
Grading LabGIA
CertificateGIA 1528318853
Dimensions8.98 × 6.36 × 3.92 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
Clouds are not shown. Internal graining is not shown.
Key to symbols
Crystal, Feather
Top View
8.98 mm6.36 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1528318853
Side View
Table 60.0%Crown 36.8°Girdle: THK-VTKPavilion 34.6°Culet: NoneDepth 61.6%

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 30
Current: €5,544 EUR|Low: €5,511 EUR|High: €9,506 EUR|Avg: €6,958 EUR|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 1€5,544 EUR
Retailer 2€6,113 EUR
Retailer 6€6,188 EUR
Retailer 4€6,956 EUR
Retailer 5€7,763 EUR
Retailer 3€9,442 EUR

36 data points across 6 retailers

14 retailers€5,544 EUR to €9,442 EUR

Retailer 1
-
€5,514 EUR
$6,161 USD
Price last confirmed 58 days ago
A
Retailer 2
-
€5,544 EUR
₹589,890 INR
View
A
Retailer 3
-
€5,560 EUR
$6,212 USD
View
Retailer 4
-
€5,884 EUR
$6,574 USD
View
Price last confirmed 18 days ago
A
Retailer 5
-
€5,899 EUR
$6,590 USD
View
A
Retailer 6
-
€6,113 EUR
£5,378 GBP
View
Retailer 7
-
€6,188 EUR
A$10,635 AUD
View
Price last confirmed 8 days ago
Retailer 8
-
€6,375 EUR
$7,122 USD
View
Price last confirmed 23 days ago
Retailer 9
-
€6,473 EUR
$7,232 USD
View
Price last confirmed 31 days ago
B+
Retailer 10
-
€6,956 EUR
View
Retailer 11
-
€7,356 EUR
$8,218 USD
View
Price last confirmed 21 days ago
B+
Retailer 12
-
€7,763 EUR
ZAR 140,110 ZAR
View
B+
Retailer 13
-
€9,442 EUR
£8,306 GBP
View
Most Expensive
NZ Jewellers
9eb5b6d1-a113-46a1-a957-1080dbec719d · Sep 30
€10,662 EUR
$11,912 USD
View
Price last confirmed 30 days ago
13 more retailers have this diamond
Prices start from €5,544 EURSave up to €3,898 EUR

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
€5,544 EUR