CaratHunter
Plans
Oval|Natural|GIA

1.51ct M SI1 Oval Natural Diamond

EX • M/SI1 • GIA 2556084481

Certificate GIA 2556084481

Diamond specifications and retailer prices

From €1,364 EUR
As of November 6, 2026
Save €1,507 EUR (52%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €4,453 EUR at NZ Jewellers · As of September 25, 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 M 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 2556084481. Listed at 8 retailers as of November 6, 2026, with a 111% 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
M
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2556084481
Dimensions8.94 × 6.36 × 4.04 mm
L/W Ratio1.41
Top View
8.94 mm6.36 mm1.51 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2556084481
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.5%

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: Nov 6
Current: €2,871 EUR|Low: €1,364 EUR|High: €3,112 EUR|Avg: €2,157 EUR|-7.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7€1,364 EUR
Retailer 8€1,682 EUR
Retailer 6€1,812 EUR
Retailer 3€1,945 EUR
Retailer 4€1,975 EUR
Retailer 9€2,151 EUR
Retailer 2€2,396 EUR
Retailer 5€2,555 EUR
Retailer 1€2,871 EUR

30 data points across 9 retailers

8 retailers€1,364 EUR to €2,871 EUR

A
Cheapest Retailer
-
€1,364 EUR
A
Retailer 2
-
€1,812 EUR
View
Final sale: no returns
A
Retailer 3
-
€1,945 EUR
View
A
Retailer 4
-
€1,975 EUR
View
B+
Retailer 5
-
€2,396 EUR
View
B+
Retailer 6
-
€2,555 EUR
View
B
Retailer 7
-
€2,871 EUR
View
Most Expensive
NZ Jewellers
4d8cfb91-c3d0-48b1-be66-8814a485524b · Sep 25
€4,453 EUR
$4,972 USD
View
Price last confirmed 42 days ago
7 more retailers have this diamond
Prices start from €1,364 EURSave up to €1,507 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
€1,364 EUR