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Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 2427623450

Certificate GIA 2427623450

Diamond specifications and retailer prices

From €6,163 EUR
$6,885 USD
As of October 28, 2026
Save €7,186 EUR (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €13,348 EUR 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2427623450. Listed at 19 retailers as of October 27, 2026, with prices from €6,163 to €13,348, a €7,186 spread on the same certified stone. NZ Jewellers lists it at €13,348. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2427623450
Dimensions9.06 × 6.55 × 4.13 mm
L/W Ratio1.38
Top View
9.06 mm6.55 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2427623450
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.0%

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 28
Current: €7,441 EUR|Low: €6,163 EUR|High: €11,257 EUR|Avg: €7,767 EUR|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 9€6,163 EUR
Retailer 2€6,250 EUR
Retailer 11€6,659 EUR
Retailer 10€6,730 EUR
Retailer 3€7,342 EUR
Retailer 1€7,441 EUR
Retailer 4€7,564 EUR
Retailer 7€7,568 EUR
Retailer 6€8,265 EUR
Retailer 8€9,632 EUR
Retailer 5€11,182 EUR

35 data points across 11 retailers

19 retailers€6,163 EUR to €13,348 EUR

B+
Cheapest Retailer
-
€6,163 EUR
$6,885 USD
B+
Retailer 2
-
€6,250 EUR
$6,982 USD
View
B
Retailer 3
-
€6,659 EUR
$7,440 USD
View
Retailer 4
-
€6,675 EUR
$7,457 USD
View
Price last confirmed 7 days ago
B
Retailer 5
-
€6,730 EUR
$7,519 USD
View
B+
Retailer 6
-
€7,231 EUR
$8,078 USD
View
Retailer 7
-
€7,342 EUR
$8,202 USD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
€7,441 EUR
£6,546 GBP
View
B
Retailer 9
-
€7,462 EUR
$8,337 USD
View
B+
Retailer 10
-
€7,564 EUR
£6,654 GBP
View
Retailer 11
-
€7,568 EUR
A$13,007 AUD
View
Price last confirmed 8 days ago
B
Retailer 12
-
€7,948 EUR
$8,880 USD
View
B
Retailer 13
-
€7,948 EUR
$8,880 USD
View
B
Retailer 14
-
€8,208 EUR
$9,170 USD
View
B
Retailer 15
-
€8,265 EUR
View
B
Retailer 16
-
€8,343 EUR
$9,321 USD
View
Retailer 17
-
€9,632 EUR
ZAR 173,840 ZAR
View
Price last confirmed 10 days ago
B
Retailer 18
-
€11,182 EUR
£9,837 GBP
View
Most Expensive
B
NZ Jewellers
6af18481-3122-4a53-afef-cf2890653e4f · Oct 27
€13,348 EUR
$14,913 USD
View
18 more retailers have this diamond
Prices start from €6,163 EURSave up to €7,186 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
€6,163 EUR