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Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 7541897480

Certificate GIA 7541897480

Diamond specifications and retailer prices

From $6,020 USD
As of November 1, 2026
Save $4,598 USD (43%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,618 USD 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 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 7541897480. Listed at 20 retailers as of November 1, 2026, with prices from $6,020 to $10,618, a $4,598 spread on the same certified stone. MOH London lists it at $10,618. 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
SymmetryExcellent
FluorescenceFaint
Crown angle39.48°
Pavilion angle39.93°
OriginNatural
Grading LabGIA
CertificateGIA 7541897480
Dimensions8.94 × 6.30 × 4.01 mm
L/W Ratio1.42
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Crystal, Feather, Indented Natural
Top View
8.94 mm6.30 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7541897480
Side View
Table 57.0%Crown 39.48°Girdle: MediumPavilion 39.93°Culet: NoneDepth 63.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $10,618 USD|Low: $5,493 USD|High: $10,676 USD|Avg: $6,932 USD|+15.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 8$5,493 USD
Retailer 15$6,020 USD
Retailer 4$6,395 USD
Retailer 5$6,425 USD
Retailer 16$6,777 USD
Retailer 13$6,789 USD
Retailer 9$6,964 USD
Retailer 7$6,991 USD
Retailer 12$7,184 USD
Retailer 10$7,230 USD
Retailer 3$7,346 USD
Retailer 6$7,758 USD
Retailer 17$7,798 USD
Retailer 2$7,965 USD
Retailer 11$8,324 USD
Retailer 14$9,362 USD
MOH London$10,618 USD

26 data points across 17 retailers

20 retailers$6,020 USD to $10,618 USD

B+
Cheapest Retailer
-
$6,020 USD
Retailer 2
-
$6,248 USD
View
Price last confirmed 40 days ago
Retailer 3
-
$6,248 USD
View
Price last confirmed 26 days ago
Retailer 4
-
$6,248 USD
View
Price last confirmed 33 days ago
B+
Retailer 5
-
$6,395 USD
View
B+
Retailer 6
-
$6,425 USD
View
B+
Retailer 7
-
$6,777 USD
CA$9,412 CAD
View
B+
Retailer 8
-
$6,789 USD
View
B+
Retailer 9
-
$6,991 USD
View
B
Retailer 10
-
$7,184 USD
£5,657 GBP
View
B
Retailer 11
-
$7,230 USD
£5,693 GBP
View
Retailer 12
-
$7,346 USD
A$11,302 AUD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
$7,758 USD
View
B
Retailer 14
-
$7,798 USD
View
B
Retailer 15
-
$7,965 USD
View
B
Retailer 16
-
$8,324 USD
€7,928 EUR
View
B
Retailer 17
-
$9,362 USD
ZAR 151,241 ZAR
View
Retailer 18
-
$10,450 USD
View
Price last confirmed 43 days ago
Retailer 19
-
$10,450 USD
View
Price last confirmed 27 days ago
Most Expensive
B
MOH London
D841CE379 · Nov 1
$10,618 USD
£8,361 GBP
View
19 more retailers have this diamond
Prices start from $6,020 USDSave up to $4,598 USD

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
$6,020 USD