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Oval|Natural|GIA

1.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 2166672066

Certificate GIA 2166672066

Diamond specifications and retailer prices

From £8,448 GBP
$11,320 USD
As of October 28, 2026
Save £6,533 GBP (44%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £14,982 GBP 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 2166672066. Listed at 19 retailers as of October 28, 2026, with prices from £8,448 to £14,982, a £6,533 spread on the same certified stone. MOH London lists it at £14,982. 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
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2166672066
Dimensions8.71 × 6.71 × 4.08 mm
L/W Ratio1.30
Top View
8.71 mm6.71 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 2166672066
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.9%

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: £14,982 GBP|Low: £8,448 GBP|High: £15,162 GBP|Avg: £11,529 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 6£8,448 GBP
Retailer 7£10,232 GBP
Retailer 2£10,239 GBP
Retailer 5£10,300 GBP
Retailer 10£10,392 GBP
Retailer 9£10,792 GBP
Retailer 4£11,543 GBP
Retailer 8£13,590 GBP
Retailer 3£14,093 GBP
MOH London£14,982 GBP

43 data points across 10 retailers

19 retailers£8,448 GBP to £14,982 GBP

B+
Cheapest Retailer
-
£8,448 GBP
$11,320 USD
B
Retailer 2
-
£8,900 GBP
$11,925 USD
View
B
Retailer 3
-
£8,913 GBP
$11,943 USD
View
B
Retailer 4
-
£8,966 GBP
CA$16,685 CAD
View
B
Retailer 5
-
£9,434 GBP
$12,640 USD
View
B
Retailer 6
-
£9,593 GBP
$12,853 USD
View
B
Retailer 7
-
£10,232 GBP
$13,710 USD
View
B
Retailer 8
-
£10,239 GBP
View
Retailer 9
-
£10,300 GBP
A$21,231 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
£10,392 GBP
$13,924 USD
View
B
Retailer 11
-
£10,792 GBP
$14,460 USD
View
B
Retailer 12
-
£11,001 GBP
$14,740 USD
View
B
Retailer 13
-
£11,001 GBP
$14,740 USD
View
B
Retailer 14
-
£11,118 GBP
$14,897 USD
View
B
Retailer 15
-
£11,367 GBP
$15,230 USD
View
B
Retailer 16
-
£11,543 GBP
€14,730 EUR
View
B
Retailer 17
-
£13,590 GBP
$18,209 USD
View
B
Retailer 18
-
£14,093 GBP
ZAR 305,059 ZAR
View
Most Expensive
B
MOH London
8A6CB078A · Nov 1
£14,982 GBP
View
18 more retailers have this diamond
Prices start from £8,448 GBPSave up to £6,533 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
£8,448 GBP