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Oval|Natural|GIA

1.51ct H SI2 Oval Natural Diamond

EX • H/SI2 • GIA 6431020211

Certificate GIA 6431020211

Diamond specifications and retailer prices

From €3,639 EUR
₹387,147 INR
As of October 31, 2026
Save €5,591 EUR (61%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €9,229 EUR at Adiamor · As of November 1, 2026
View at Adiamor

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded H 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 6431020211. Listed at 18 retailers as of October 31, 2026, with prices from €3,639 to €9,229, a €5,591 spread on the same certified stone. Adiamor lists it at €9,229. 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
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6431020211
Dimensions8.37 × 6.31 × 4.09 mm
L/W Ratio1.33
Top View
8.37 mm6.31 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6431020211
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.8%

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: Oct 31
Current: €5,670 EUR|Low: €3,475 EUR|High: €8,078 EUR|Avg: €4,956 EUR|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 4€3,639 EUR
Retailer 5€3,643 EUR
Retailer 10€4,213 EUR
Retailer 9€4,371 EUR
Retailer 7€4,399 EUR
Retailer 8€4,625 EUR
Retailer 3€4,889 EUR
Retailer 2€5,012 EUR
Retailer 1€5,670 EUR
Retailer 6€8,024 EUR

38 data points across 10 retailers

18 retailers€3,639 EUR to €9,229 EUR

A
Cheapest Retailer
-
€3,639 EUR
₹387,147 INR
A
Retailer 2
-
€3,643 EUR
HK$31,800 HKD
View
A
Retailer 3
-
€4,213 EUR
$4,707 USD
View
A
Retailer 4
-
€4,279 EUR
$4,781 USD
View
A
Retailer 5
-
€4,371 EUR
$4,883 USD
View
Retailer 6
-
€4,399 EUR
$4,915 USD
View
Price last confirmed 11 days ago
B+
Retailer 7
-
€4,625 EUR
$5,167 USD
View
Final sale: no returns
B+
Retailer 8
-
€4,629 EUR
SGD 6,988 SGD
View
B+
Retailer 9
-
€4,889 EUR
£4,301 GBP
View
B+
Retailer 10
-
€5,012 EUR
$5,599 USD
View
B+
Retailer 11
-
€5,012 EUR
$5,599 USD
View
B+
Retailer 12
-
€5,012 EUR
$5,599 USD
View
B+
Retailer 13
-
€5,150 EUR
$5,753 USD
View
B+
Retailer 14
-
€5,670 EUR
View
B+
Retailer 15
-
€5,782 EUR
$6,460 USD
View
B
Retailer 16
-
€8,024 EUR
£7,059 GBP
View
B
Retailer 17
-
€8,382 EUR
$9,364 USD
View
Most Expensive
B
Adiamor
D-64716253 · Nov 1
€9,229 EUR
$10,311 USD
View
17 more retailers have this diamond
Prices start from €3,639 EURSave up to €5,591 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
€3,639 EUR