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Round|Natural|GIA

1.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 5443367010

Certificate GIA 5443367010

Diamond specifications and retailer prices

From €4,588 EUR
HK$40,200 HKD
As of November 1, 2026
Save €5,746 EUR (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €10,333 EUR at NZ Jewellers · As of October 27, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5443367010. Listed at 19 retailers as of October 27, 2026, with prices from €4,588 to €10,333, a €5,746 spread on the same certified stone. NZ Jewellers lists it at €10,333. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5443367010
Dimensions7.36 × 7.40 × 4.50 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.36 mm7.40 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5443367010
Side View
Table 57.0%Crown 32°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.0%

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: €6,399 EUR|Low: €4,588 EUR|High: €9,212 EUR|Avg: €6,508 EUR|+9.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 4€4,588 EUR
Retailer 3€5,227 EUR
Retailer 9€5,658 EUR
Retailer 10€5,703 EUR
Retailer 11€6,059 EUR
Retailer 2€6,273 EUR
Retailer 5€6,373 EUR
Retailer 1€6,399 EUR
Retailer 6€6,868 EUR
Retailer 7€7,523 EUR
Retailer 8€9,115 EUR

41 data points across 11 retailers

19 retailers€4,588 EUR to €10,333 EUR

A
Cheapest Retailer
-
€4,588 EUR
HK$40,200 HKD
Retailer 2
-
€5,227 EUR
$5,863 USD
View
Price last confirmed 8 days ago
Retailer 3
-
€5,389 EUR
$6,044 USD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
€5,400 EUR
$6,057 USD
View
B+
Retailer 5
-
€5,658 EUR
SGD 8,576 SGD
View
Retailer 6
-
€5,703 EUR
$6,397 USD
View
Price last confirmed 8 days ago
Retailer 7
-
€5,724 EUR
$6,420 USD
View
Price last confirmed 5 days ago
Retailer 8
-
€6,059 EUR
A$10,455 AUD
View
Price last confirmed 29 days ago
Retailer 9
-
€6,179 EUR
$6,930 USD
View
Price last confirmed 7 days ago
Retailer 10
-
€6,273 EUR
$7,036 USD
View
Price last confirmed 8 days ago
Retailer 11
-
€6,321 EUR
$7,090 USD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
€6,322 EUR
$7,091 USD
View
B+
Retailer 13
-
€6,373 EUR
View
B
Retailer 14
-
€6,399 EUR
£5,651 GBP
View
B+
Retailer 15
-
€6,868 EUR
£6,065 GBP
View
B+
Retailer 16
-
€7,129 EUR
$7,996 USD
View
B+
Retailer 17
-
€7,523 EUR
ZAR 136,322 ZAR
View
Retailer 18
-
€9,115 EUR
£8,050 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
NZ Jewellers
52f86b50-f4b6-4949-93c9-690b18e8f1aa · Oct 27
€10,333 EUR
$11,590 USD
View
18 more retailers have this diamond
Prices start from €4,588 EURSave up to €5,746 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 Round
€4,588 EUR