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Oval|Natural|GIA

1.50ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 2556664739

Certificate GIA 2556664739

Diamond specifications and retailer prices

From £3,633 GBP
HK$37,800 HKD
As of October 29, 2026
Save £3,925 GBP (52%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £8,408 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct natural oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556664739. Listed at 21 retailers as of October 28, 2026, with a 108% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556664739
Dimensions8.83 × 6.41 × 4.06 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Knot, Crystal, Feather, Cavity, Indented Natural
Top View
8.83 mm6.41 mm1.50 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556664739
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £4,690 GBP|Low: £3,633 GBP|High: £7,682 GBP|Avg: £5,162 GBP|-3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 10£3,633 GBP
Retailer 4£3,918 GBP
Retailer 3£4,278 GBP
Retailer 2£4,414 GBP
Retailer 11£4,513 GBP
Retailer 1£4,690 GBP
Retailer 9£4,821 GBP
Retailer 8£5,008 GBP
Retailer 6£5,334 GBP
Retailer 5£7,242 GBP
Retailer 7£7,558 GBP

31 data points across 11 retailers

21 retailers£3,633 GBP to £7,558 GBP

A
Cheapest Retailer
-
£3,633 GBP
HK$37,800 HKD
A
Retailer 2
-
£3,918 GBP
₹496,861 INR
View
Retailer 3
-
£4,278 GBP
SGD 7,699 SGD
View
Price last confirmed 15 days ago
A
Retailer 4
-
£4,414 GBP
SGD 7,944 SGD
View
A
Retailer 5
-
£4,513 GBP
$6,010 USD
View
Final sale: no returns
A
Retailer 6
-
£4,590 GBP
$6,112 USD
View
Retailer 7
-
£4,615 GBP
$6,146 USD
View
Price last confirmed 18 days ago
A
Retailer 8
-
£4,690 GBP
View
A
Retailer 9
-
£4,778 GBP
A$9,788 AUD
View
A
Retailer 10
-
£4,821 GBP
$6,420 USD
View
Retailer 11
-
£5,000 GBP
$6,658 USD
View
Price last confirmed 18 days ago
A
Retailer 12
-
£5,008 GBP
$6,670 USD
View
Retailer 13
-
£5,027 GBP
$6,695 USD
View
Price last confirmed 38 days ago
Retailer 14
-
£5,105 GBP
$6,798 USD
View
Price last confirmed 30 days ago
A
Retailer 15
-
£5,334 GBP
€6,765 EUR
View
Retailer 16
-
£5,769 GBP
$7,683 USD
View
Price last confirmed 18 days ago
Retailer 17
-
£5,801 GBP
$7,725 USD
View
Price last confirmed 38 days ago
B+
Retailer 18
-
£7,242 GBP
View
B
Retailer 19
-
£7,558 GBP
View
Retailer 20
-
£8,362 GBP
$11,136 USD
View
Price last confirmed 19 days ago
Most Expensive
NZ Jewellers
0ea3c8e2-d8a4-4d10-b132-a14dfc4ce5ca · Sep 25
£8,408 GBP
$11,197 USD
View
Price last confirmed 35 days ago
20 more retailers have this diamond
Prices start from £3,633 GBPSave up to £3,925 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.

A
1.50ct Oval
£3,633 GBP