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1.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 5181599972

Certificate GIA 5181599972

Diamond specifications and retailer prices

From €9,223 EUR
$10,345 USD
As of November 1, 2026
Save €9,723 EUR (51%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €18,946 EUR at Diamond Quarter · As of November 2, 2026
View at Diamond Quarter

About this 1.51ct natural round diamond

This 1.51ct natural round 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 and certified by GIA 5181599972. Listed at 20 retailers as of November 1, 2026, with prices from €9,223 to €18,946, a €9,723 spread on the same certified stone. Diamond Quarter lists it at €18,946. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5181599972
Dimensions7.40 × 7.37 × 4.50 mm
L/W Ratio1.00
Top View
7.40 mm7.37 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5181599972
Side View
Table 59.0%CrownGirdle: THN-STKPavilionCulet: 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: Nov 1
Current: €11,191 EUR|Low: €8,682 EUR|High: €17,364 EUR|Avg: €11,884 EUR|-4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 16€9,223 EUR
Retailer 13€9,502 EUR
Retailer 10€9,667 EUR
Retailer 3€9,891 EUR
Retailer 11€10,267 EUR
Retailer 6€10,419 EUR
Retailer 19€10,419 EUR
Retailer 1€11,191 EUR
Retailer 8€11,287 EUR
Retailer 15€11,336 EUR
Retailer 2€11,460 EUR
Retailer 7€12,059 EUR
Retailer 5€12,081 EUR
Retailer 17€12,081 EUR
Retailer 20€12,482 EUR
Retailer 18€12,523 EUR
Retailer 4€13,023 EUR
Retailer 14€15,306 EUR
Retailer 12€16,271 EUR
Retailer 9€17,364 EUR

44 data points across 20 retailers

20 retailers€9,223 EUR to €18,946 EUR

B+
Cheapest Retailer
-
€9,223 EUR
$10,345 USD
B+
Retailer 2
-
€9,502 EUR
$10,658 USD
View
B
Retailer 3
-
€9,667 EUR
$10,842 USD
View
B
Retailer 4
-
€9,891 EUR
CA$15,408 CAD
View
B
Retailer 5
-
€10,267 EUR
$11,515 USD
View
B
Retailer 6
-
€10,419 EUR
$11,686 USD
View
B
Retailer 7
-
€10,419 EUR
$11,686 USD
View
Final sale: no returns
B
Retailer 8
-
€11,191 EUR
£9,883 GBP
View
B
Retailer 9
-
€11,287 EUR
$12,659 USD
View
Retailer 10
-
€11,336 EUR
A$19,560 AUD
View
Price last confirmed 9 days ago
B
Retailer 11
-
€11,460 EUR
$12,854 USD
View
B
Retailer 12
-
€12,059 EUR
$13,525 USD
View
B
Retailer 13
-
€12,081 EUR
$13,550 USD
View
B
Retailer 14
-
€12,081 EUR
$13,550 USD
View
B
Retailer 15
-
€12,482 EUR
$14,000 USD
View
B
Retailer 16
-
€13,023 EUR
$14,607 USD
View
B
Retailer 17
-
€15,306 EUR
ZAR 277,346 ZAR
View
B
Retailer 18
-
€16,271 EUR
£14,370 GBP
View
B
Retailer 19
-
€17,364 EUR
$19,476 USD
View
Most Expensive
B
Diamond Quarter
1.51SI1G517287D1N · Nov 2
€18,946 EUR
£16,732 GBP
View
19 more retailers have this diamond
Prices start from €9,223 EURSave up to €9,723 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.

B+
1.51ct Round
€9,223 EUR