CaratHunter
Plans
Round|Natural|GIA

1.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2557742093

Certificate GIA 2557742093

Diamond specifications and retailer prices

From €3,655 EUR
HK$31,900 HKD
As of October 31, 2026
Save €4,570 EUR (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €8,224 EUR at Queensmith · As of October 28, 2026
View at Queensmith

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557742093. Listed at 19 retailers as of October 28, 2026, with prices from €3,655 to €8,224, a €4,570 spread on the same certified stone. Queensmith lists it at €8,224. 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
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2557742093
Dimensions7.28 × 7.34 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather
Top View
7.28 mm7.34 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557742093
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.5%

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: Oct 31
Current: €8,224 EUR|Low: €3,655 EUR|High: €8,253 EUR|Avg: €5,622 EUR|+2.0%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 3€3,655 EUR
Retailer 2€3,882 EUR
Retailer 7€4,270 EUR
Retailer 8€4,493 EUR
Retailer 4€4,719 EUR
Retailer 5€5,523 EUR
Retailer 6€7,795 EUR
Queensmith€8,224 EUR

35 data points across 8 retailers

19 retailers€3,655 EUR to €8,224 EUR

A
Cheapest Retailer
-
€3,655 EUR
HK$31,900 HKD
A
Retailer 2
-
€3,882 EUR
₹413,077 INR
View
A
Retailer 3
-
€4,270 EUR
SGD 6,447 SGD
View
A
Retailer 4
-
€4,440 EUR
$4,960 USD
View
A
Retailer 5
-
€4,493 EUR
$5,020 USD
View
Final sale: no returns
A
Retailer 6
-
€4,641 EUR
SGD 7,007 SGD
View
A
Retailer 7
-
€4,665 EUR
A$8,018 AUD
View
A
Retailer 8
-
€4,719 EUR
£4,151 GBP
View
B+
Retailer 9
-
€4,816 EUR
$5,380 USD
View
Retailer 10
-
€4,868 EUR
$5,439 USD
View
Price last confirmed 24 days ago
Retailer 11
-
€4,868 EUR
$5,439 USD
View
Price last confirmed 24 days ago
Retailer 12
-
€4,868 EUR
$5,439 USD
View
Price last confirmed 33 days ago
Retailer 13
-
€4,868 EUR
$5,439 USD
View
Price last confirmed 32 days ago
B+
Retailer 14
-
€5,006 EUR
$5,592 USD
View
B+
Retailer 15
-
€5,523 EUR
View
Retailer 16
-
€5,617 EUR
$6,275 USD
View
Price last confirmed 32 days ago
B
Retailer 17
-
€7,795 EUR
£6,857 GBP
View
Retailer 18
-
€8,143 EUR
$9,097 USD
View
Price last confirmed 34 days ago
Most Expensive
B
Queensmith
2557742093 · Oct 28
€8,224 EUR
£7,235 GBP
View
18 more retailers have this diamond
Prices start from €3,655 EURSave up to €4,570 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
€3,655 EUR