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1.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 7553158400

Certificate GIA 7553158400

Diamond specifications and retailer prices

From €6,586 EUR
$7,358 USD
As of November 1, 2026
Save €7,943 EUR (55%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €14,529 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 7553158400. Listed at 24 retailers as of October 30, 2026, with prices from €6,586 to €14,529, a €7,943 spread on the same certified stone. NZ Jewellers lists it at €14,529. 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
FluorescenceMedium
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7553158400
Dimensions7.31 × 7.28 × 4.56 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
7.31 mm7.28 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7553158400
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

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: €14,529 EUR|Low: €6,335 EUR|High: €14,529 EUR|Avg: €9,218 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8€6,968 EUR
Retailer 3€7,265 EUR
Retailer 10€7,870 EUR
Retailer 2€7,989 EUR
Retailer 9€7,990 EUR
Retailer 7€8,025 EUR
Retailer 4€8,989 EUR
Retailer 11€9,081 EUR
Retailer 6€10,672 EUR
Retailer 5€12,107 EUR
NZ Jewellers€14,529 EUR

43 data points across 11 retailers

24 retailers€6,586 EUR to €14,529 EUR

B+
Cheapest Retailer
-
€6,586 EUR
$7,358 USD
B+
Retailer 2
-
€6,785 EUR
A$11,662 AUD
View
B+
Retailer 3
-
€6,802 EUR
$7,599 USD
View
B+
Retailer 4
-
€6,968 EUR
$7,785 USD
View
Final sale: no returns
B+
Retailer 5
-
€6,996 EUR
$7,816 USD
View
B+
Retailer 6
-
€7,139 EUR
CA$11,077 CAD
View
B+
Retailer 7
-
€7,228 EUR
$8,075 USD
View
B+
Retailer 8
-
€7,265 EUR
$8,116 USD
View
B+
Retailer 9
-
€7,870 EUR
$8,792 USD
View
B+
Retailer 10
-
€7,989 EUR
£7,028 GBP
View
B
Retailer 11
-
€7,990 EUR
$8,927 USD
View
Retailer 12
-
€8,025 EUR
A$13,794 AUD
View
Price last confirmed 9 days ago
B
Retailer 13
-
€8,061 EUR
$9,006 USD
View
B+
Retailer 14
-
€8,349 EUR
$9,327 USD
View
B+
Retailer 15
-
€8,611 EUR
$9,620 USD
View
B+
Retailer 16
-
€8,611 EUR
$9,620 USD
View
B
Retailer 17
-
€8,897 EUR
$9,940 USD
View
B+
Retailer 18
-
€8,989 EUR
View
B
Retailer 19
-
€9,081 EUR
$10,145 USD
View
B
Retailer 20
-
€9,270 EUR
$10,356 USD
View
Retailer 21
-
€9,564 EUR
$10,685 USD
View
Price last confirmed 10 days ago
B
Retailer 22
-
€10,672 EUR
ZAR 192,615 ZAR
View
B
Retailer 23
-
€12,107 EUR
£10,650 GBP
View
Most Expensive
B
NZ Jewellers
eb3c1a88-f45c-4c03-a97a-4d4757043811 · Oct 30
€14,529 EUR
$16,232 USD
View
23 more retailers have this diamond
Prices start from €6,586 EURSave up to €7,943 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
€6,586 EUR