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Oval|Natural|GIA

1.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 1169911515

Certificate GIA 1169911515

Diamond specifications and retailer prices

From £8,545 GBP
$11,450 USD
As of October 28, 2026
Save £6,693 GBP (44%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £15,238 GBP at MOH London · As of October 29, 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 1169911515. Listed at 19 retailers as of October 28, 2026, with prices from £8,545 to £15,238, a £6,693 spread on the same certified stone. MOH London lists it at £15,238. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1169911515
Dimensions8.79 × 6.58 × 4.09 mm
L/W Ratio1.34
Top View
8.79 mm6.58 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1169911515
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.2%

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: Oct 28
Current: £15,238 GBP|Low: £8,545 GBP|High: £15,340 GBP|Avg: £11,477 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 7£8,545 GBP
Retailer 3£9,705 GBP
Retailer 8£10,352 GBP
Retailer 4£10,360 GBP
Retailer 6£10,422 GBP
Retailer 10£10,514 GBP
Retailer 9£10,919 GBP
Retailer 2£11,680 GBP
Retailer 11£13,749 GBP
Retailer 5£14,183 GBP
MOH London£15,238 GBP

43 data points across 11 retailers

19 retailers£8,545 GBP to £15,238 GBP

B+
Cheapest Retailer
-
£8,545 GBP
$11,450 USD
B
Retailer 2
-
£9,004 GBP
$12,065 USD
View
B
Retailer 3
-
£9,019 GBP
$12,085 USD
View
B
Retailer 4
-
£9,073 GBP
CA$16,884 CAD
View
B
Retailer 5
-
£9,542 GBP
$12,785 USD
View
B
Retailer 6
-
£9,705 GBP
$13,004 USD
View
B
Retailer 7
-
£10,352 GBP
$13,871 USD
View
B
Retailer 8
-
£10,360 GBP
View
Retailer 9
-
£10,422 GBP
A$21,484 AUD
View
Price last confirmed 7 days ago
B
Retailer 10
-
£10,514 GBP
$14,088 USD
View
B
Retailer 11
-
£10,919 GBP
$14,630 USD
View
B
Retailer 12
-
£11,113 GBP
$14,890 USD
View
B
Retailer 13
-
£11,113 GBP
$14,890 USD
View
B
Retailer 14
-
£11,251 GBP
$15,075 USD
View
B
Retailer 15
-
£11,486 GBP
$15,390 USD
View
B
Retailer 16
-
£11,680 GBP
€14,905 EUR
View
B
Retailer 17
-
£13,749 GBP
$18,422 USD
View
B
Retailer 18
-
£14,183 GBP
ZAR 306,998 ZAR
View
Most Expensive
B
MOH London
DE6A5FE04 · Oct 29
£15,238 GBP
View
18 more retailers have this diamond
Prices start from £8,545 GBPSave up to £6,693 GBP

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
£8,545 GBP