Oval|Natural|GIA

1.50ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 6551278598

Certificate GIA 6551278598

Diamond specifications and retailer prices

From €4,296 EUR
HK$37,500 HKD
As of October 31, 2026
Save €4,262 EUR (50%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €11,862 EUR at NZ Jewellers · As of August 30, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551278598. Listed at 18 retailers as of October 29, 2026, with a 99% 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
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6551278598
Dimensions8.92 × 6.52 × 4.11 mm
L/W Ratio1.37
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
8.92 mm6.52 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6551278598
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 63.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €7,099 EUR|Low: €4,251 EUR|High: €9,351 EUR|Avg: €5,944 EUR|-12.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 5€4,296 EUR
Retailer 12€4,894 EUR
Retailer 2€5,039 EUR
Retailer 10€5,054 EUR
Retailer 11€5,333 EUR
Retailer 9€5,371 EUR
Retailer 6€5,543 EUR
Retailer 4€5,584 EUR
Retailer 3€5,712 EUR
Retailer 7€6,314 EUR
Retailer 1€7,099 EUR
Retailer 8€8,559 EUR

35 data points across 12 retailers

18 retailers€4,296 EUR to €8,559 EUR

A
Cheapest Retailer
-
€4,296 EUR
HK$37,500 HKD
Retailer 2
-
€4,894 EUR
SGD 7,388 SGD
View
Price last confirmed 18 days ago
A
Retailer 3
-
€5,039 EUR
$5,630 USD
View
A
Retailer 4
-
€5,054 EUR
$5,646 USD
View
A
Retailer 5
-
€5,333 EUR
$5,958 USD
View
Final sale: no returns
A
Retailer 6
-
€5,371 EUR
$6,000 USD
View
Retailer 7
-
€5,485 EUR
$6,128 USD
View
Price last confirmed 24 days ago
A
Retailer 8
-
€5,543 EUR
£4,876 GBP
View
Retailer 9
-
€5,712 EUR
A$9,818 AUD
View
Price last confirmed 22 days ago
Retailer 10
-
€5,778 EUR
$6,455 USD
View
Price last confirmed 22 days ago
A
Retailer 11
-
€6,314 EUR
View
Retailer 12
-
€6,702 EUR
$7,487 USD
View
Price last confirmed 32 days ago
Retailer 13
-
€6,856 EUR
$7,660 USD
View
Price last confirmed 23 days ago
B+
Retailer 14
-
€7,099 EUR
ZAR 128,134 ZAR
View
Retailer 15
-
€7,995 EUR
$8,932 USD
View
Price last confirmed 46 days ago
B+
Retailer 16
-
€8,559 EUR
£7,529 GBP
View
Retailer 17
-
€9,939 EUR
$11,104 USD
View
Price last confirmed 22 days ago
Most Expensive
NZ Jewellers
5d398fb2-e47e-4d8d-9c9c-99cae6142bd8 · Aug 30
€11,862 EUR
$13,252 USD
View
Price last confirmed 62 days ago
17 more retailers have this diamond
Prices start from €4,296 EURSave up to €4,262 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.

A
1.50ct Oval
€4,296 EUR