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Oval|Natural|GIA

1.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 1285728814

Certificate GIA 1285728814

Diamond specifications and retailer prices

From €10,012 EUR
$11,185 USD
As of October 28, 2026
Save €7,746 EUR (44%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €17,757 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded D 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 1285728814. Listed at 19 retailers as of October 28, 2026, with prices from €10,012 to €17,757, a €7,746 spread on the same certified stone. MOH London lists it at €17,757. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1285728814
Dimensions8.56 × 6.58 × 4.11 mm
L/W Ratio1.30
Culet sizeNone
Top View
8.56 mm6.58 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1285728814
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.5%

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: €17,757 EUR|Low: €10,012 EUR|High: €17,971 EUR|Avg: €13,666 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6€10,012 EUR
Retailer 7€12,128 EUR
Retailer 2€12,135 EUR
Retailer 5€12,206 EUR
Retailer 9€12,317 EUR
Retailer 10€12,791 EUR
Retailer 4€13,678 EUR
Retailer 8€16,107 EUR
Retailer 3€16,704 EUR
MOH London€17,757 EUR

44 data points across 10 retailers

19 retailers€10,012 EUR to €17,757 EUR

B+
Cheapest Retailer
-
€10,012 EUR
$11,185 USD
B
Retailer 2
-
€10,549 EUR
$11,785 USD
View
B
Retailer 3
-
€10,563 EUR
$11,801 USD
View
B
Retailer 4
-
€10,625 EUR
CA$16,486 CAD
View
B
Retailer 5
-
€11,184 EUR
$12,495 USD
View
B
Retailer 6
-
€11,369 EUR
$12,702 USD
View
B
Retailer 7
-
€12,128 EUR
$13,549 USD
View
B
Retailer 8
-
€12,135 EUR
£10,675 GBP
View
Retailer 9
-
€12,206 EUR
A$20,979 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
€12,317 EUR
$13,761 USD
View
B
Retailer 11
-
€12,791 EUR
$14,290 USD
View
B
Retailer 12
-
€13,050 EUR
$14,580 USD
View
B
Retailer 13
-
€13,050 EUR
$14,580 USD
View
B
Retailer 14
-
€13,176 EUR
$14,720 USD
View
B
Retailer 15
-
€13,489 EUR
$15,070 USD
View
B
Retailer 16
-
€13,678 EUR
View
B
Retailer 17
-
€16,107 EUR
$17,995 USD
View
B
Retailer 18
-
€16,704 EUR
ZAR 301,479 ZAR
View
Most Expensive
B
MOH London
6AEEE2EE4 · Nov 1
€17,757 EUR
£15,621 GBP
View
18 more retailers have this diamond
Prices start from €10,012 EURSave up to €7,746 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
€10,012 EUR