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Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 2316765230

Certificate GIA 2316765230

Diamond specifications and retailer prices

From €5,371 EUR
$6,000 USD
As of October 31, 2026
Save €6,719 EUR (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €12,089 EUR at NZ Jewellers · As of October 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 I 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 2316765230. Listed at 22 retailers as of October 30, 2026, with prices from €5,371 to €12,089, a €6,719 spread on the same certified stone. NZ Jewellers lists it at €12,089. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2316765230
Dimensions9.00 × 6.65 × 4.02 mm
L/W Ratio1.35
Top View
9.00 mm6.65 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2316765230
Side View
Table 59.0%CrownGirdle: VTN-MEDPavilionCulet: NoneDepth 60.4%

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 31
Current: €12,089 EUR|Low: €5,371 EUR|High: €12,089 EUR|Avg: €7,607 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 11€5,371 EUR
Retailer 9€5,771 EUR
Retailer 4€6,045 EUR
Retailer 3€6,548 EUR
Retailer 10€6,649 EUR
Retailer 5€6,818 EUR
Retailer 8€6,926 EUR
Retailer 12€7,555 EUR
Retailer 2€7,895 EUR
Retailer 6€8,879 EUR
Retailer 7€10,127 EUR
NZ Jewellers€12,089 EUR

44 data points across 12 retailers

22 retailers€5,371 EUR to €12,089 EUR

B+
Cheapest Retailer
-
€5,371 EUR
$6,000 USD
B+
Retailer 2
-
€5,601 EUR
$6,258 USD
View
B+
Retailer 3
-
€5,711 EUR
$6,380 USD
View
B+
Retailer 4
-
€5,771 EUR
$6,447 USD
View
Final sale: no returns
B+
Retailer 5
-
€5,794 EUR
$6,473 USD
View
B+
Retailer 6
-
€6,008 EUR
CA$9,323 CAD
View
B+
Retailer 7
-
€6,045 EUR
$6,753 USD
View
B+
Retailer 8
-
€6,055 EUR
$6,765 USD
View
B+
Retailer 9
-
€6,095 EUR
$6,809 USD
View
B
Retailer 10
-
€6,436 EUR
$7,190 USD
View
B
Retailer 11
-
€6,548 EUR
$7,316 USD
View
B
Retailer 12
-
€6,649 EUR
$7,428 USD
View
B
Retailer 13
-
€6,676 EUR
$7,458 USD
View
B+
Retailer 14
-
€6,818 EUR
£5,997 GBP
View
B+
Retailer 15
-
€6,915 EUR
$7,725 USD
View
Retailer 16
-
€6,926 EUR
A$11,904 AUD
View
Price last confirmed 11 days ago
B
Retailer 17
-
€7,555 EUR
$8,441 USD
View
B
Retailer 18
-
€7,895 EUR
View
B
Retailer 19
-
€7,964 EUR
$8,897 USD
View
B
Retailer 20
-
€8,879 EUR
ZAR 160,262 ZAR
View
B
Retailer 21
-
€10,127 EUR
£8,909 GBP
View
Most Expensive
B
NZ Jewellers
7b5bc6cf-00be-4a75-8a6e-4a63f09f1019 · Oct 30
€12,089 EUR
$13,506 USD
View
21 more retailers have this diamond
Prices start from €5,371 EURSave up to €6,719 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
€5,371 EUR