Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

ID • E/SI1 • GIA 6531137674

Certificate GIA 6531137674

Diamond specifications and retailer prices

From €7,400 EUR
$8,267 USD
As of October 30, 2026
Save €4,960 EUR (40%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €13,173 EUR at NZ Jewellers · As of September 28, 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 6531137674. Listed at 20 retailers as of October 26, 2026, with a 67% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle37.3°
OriginNatural
Grading LabGIA
CertificateGIA 6531137674
Dimensions8.77 × 6.46 × 4.11 mm
L/W Ratio1.36
Top View
8.77 mm6.46 mm1.51 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531137674
Side View
Table 57.0%Crown 38.6°Girdle: STK-THKPavilion 37.3°Culet: NoneDepth 63.6%

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: Oct 30
Current: €7,400 EUR|Low: €7,009 EUR|High: €12,493 EUR|Avg: €8,748 EUR|+1.4%
Retailer 1
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
October 30, 2026
Retailer 11€7,009 EUR
Retailer 1€7,400 EUR
Retailer 2€7,400 EUR
Retailer 14€7,845 EUR
Retailer 12€7,904 EUR
Retailer 6€7,970 EUR
Retailer 13€8,562 EUR
Retailer 7€8,643 EUR
Retailer 9€8,684 EUR
Retailer 3€9,282 EUR
Retailer 4€9,282 EUR
Retailer 5€9,595 EUR
Retailer 10€11,406 EUR
Retailer 8€12,360 EUR

41 data points across 14 retailers

20 retailers€7,400 EUR to €12,360 EUR

Retailer 1
-
€7,009 EUR
$7,830 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
€7,400 EUR
$8,267 USD
View
B+
Retailer 3
-
€7,400 EUR
$8,267 USD
View
B+
Retailer 4
-
€7,845 EUR
$8,765 USD
View
B+
Retailer 5
-
€7,904 EUR
$8,830 USD
View
Final sale: no returns
B+
Retailer 6
-
€7,904 EUR
$8,830 USD
View
B+
Retailer 7
-
€7,970 EUR
$8,904 USD
View
B+
Retailer 8
-
€8,426 EUR
$9,414 USD
View
Retailer 9
-
€8,562 EUR
$9,566 USD
View
Price last confirmed 32 days ago
B+
Retailer 10
-
€8,562 EUR
$9,566 USD
View
B+
Retailer 11
-
€8,643 EUR
£7,603 GBP
View
Retailer 12
-
€8,684 EUR
A$14,926 AUD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
€9,199 EUR
$10,277 USD
View
B+
Retailer 14
-
€9,282 EUR
$10,370 USD
View
B+
Retailer 15
-
€9,282 EUR
$10,370 USD
View
B+
Retailer 16
-
€9,595 EUR
$10,720 USD
View
Retailer 17
-
€9,880 EUR
$11,038 USD
View
Price last confirmed 32 days ago
Retailer 18
-
€11,406 EUR
ZAR 205,864 ZAR
View
Price last confirmed 8 days ago
B
Retailer 19
-
€12,360 EUR
£10,873 GBP
View
Most Expensive
NZ Jewellers
00c0aeb9-6e00-439a-b006-4463ad937dc4 · Sep 28
€13,173 EUR
$14,717 USD
View
Price last confirmed 32 days ago
19 more retailers have this diamond
Prices start from €7,400 EURSave up to €4,960 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.

B+
1.51ct Oval
€7,400 EUR