Oval|Natural|GIA

1.51ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 6542547818

Certificate GIA 6542547818

Diamond specifications and retailer prices

From €4,747 EUR
HK$41,600 HKD
As of November 1, 2026
Save €4,164 EUR (47%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €9,665 EUR at Riddles Jewelry · As of October 25, 2026
View at Riddles Jewelry

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded G 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 6542547818. Listed at 22 retailers as of November 1, 2026, with a 88% 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

1.51
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle39.6°
OriginNatural
Grading LabGIA
CertificateGIA 6542547818
Dimensions8.67 × 6.32 × 4.15 mm
L/W Ratio1.37
Top View
8.67 mm6.32 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542547818
Side View
Table 58.0%CrownGirdle: THK-VTKPavilion 39.6°Culet: NoneDepth 65.7%

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: Nov 1
Current: €6,390 EUR|Low: €4,747 EUR|High: €12,198 EUR|Avg: €7,330 EUR|+21.1%
Retailer 1
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Riddles Jewelry
November 2, 2026
Retailer 21€4,747 EUR
Retailer 18€5,052 EUR
Retailer 9€5,178 EUR
Retailer 6€5,340 EUR
Retailer 4€5,348 EUR
Retailer 7€5,370 EUR
Retailer 5€5,465 EUR
Retailer 20€5,526 EUR
Retailer 19€5,581 EUR
Retailer 10€5,673 EUR
Retailer 17€5,897 EUR
Retailer 15€6,025 EUR
Retailer 12€6,131 EUR
Retailer 14€6,339 EUR
Retailer 1€6,390 EUR
Retailer 8€6,896 EUR
Retailer 16€6,985 EUR
Retailer 11€7,225 EUR
Retailer 3€7,856 EUR
Retailer 13€8,387 EUR
Retailer 2€8,911 EUR
Riddles Jewelry€9,665 EUR

26 data points across 22 retailers

22 retailers€4,747 EUR to €8,911 EUR

A
Cheapest Retailer
-
€4,747 EUR
HK$41,600 HKD
A
Retailer 2
-
€5,052 EUR
$5,666 USD
View
A
Retailer 3
-
€5,178 EUR
$5,808 USD
View
A
Retailer 4
-
€5,278 EUR
$5,920 USD
View
A
Retailer 5
-
€5,340 EUR
$5,989 USD
View
A
Retailer 6
-
€5,348 EUR
$5,998 USD
View
Final sale: no returns
A
Retailer 7
-
€5,370 EUR
$6,023 USD
View
A
Retailer 8
-
€5,465 EUR
$6,130 USD
View
B+
Retailer 9
-
€5,526 EUR
A$9,535 AUD
View
A
Retailer 10
-
€5,581 EUR
$6,260 USD
View
B+
Retailer 11
-
€5,673 EUR
$6,363 USD
View
B+
Retailer 12
-
€5,897 EUR
£5,208 GBP
View
B+
Retailer 13
-
€6,025 EUR
£5,321 GBP
View
B+
Retailer 14
-
€6,131 EUR
$6,877 USD
View
B+
Retailer 15
-
€6,390 EUR
View
B+
Retailer 16
-
€6,896 EUR
$7,734 USD
View
B+
Retailer 17
-
€6,985 EUR
View
Retailer 18
-
€7,225 EUR
$8,104 USD
View
Price last confirmed 21 days ago
B+
Retailer 19
-
€7,856 EUR
ZAR 142,356 ZAR
View
Retailer 20
-
€8,387 EUR
A$14,473 AUD
View
Price last confirmed 39 days ago
B
Retailer 21
-
€8,911 EUR
£7,870 GBP
View
Most Expensive
Riddles Jewelry
1985031488 · Oct 25
€9,665 EUR
$10,840 USD
View
Price last confirmed 8 days ago
21 more retailers have this diamond
Prices start from €4,747 EURSave up to €4,164 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
1.51ct Oval
€4,747 EUR