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Round|Lab Grown|GIA

1.55ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • GIA 3455059690

Certificate GIA 3455059690

Diamond specifications and retailer prices

From €573 EUR
£504 GBP
As of October 30, 2026
Save €860 EUR (60%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €1,433 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3455059690. Listed at 5 retailers as of October 29, 2026, with prices from €573 to €1,433, a €860 spread on the same certified stone. MOH London lists it at €1,433. 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

1.55
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginLab Grown
Grading LabGIA
CertificateGIA 3455059690
Dimensions7.38 × 7.40 × 4.59 mm
L/W Ratio1.00
Culet sizeNone
Top View
7.38 mm7.40 mm1.55 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3455059690
Side View
Table 57.0%Crown 35°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.1%

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: Oct 30
Current: €1,433 EUR|Low: €572 EUR|High: €1,817 EUR|Avg: €1,160 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 2€573 EUR
Retailer 5€576 EUR
Retailer 3€587 EUR
Retailer 4€650 EUR
MOH London€1,433 EUR
Retailer 7€1,728 EUR
Retailer 6€1,817 EUR
Retailer 8€1,817 EUR

3 data points across 8 retailers

5 retailers€573 EUR to €1,433 EUR

B+
Cheapest Retailer
-
€573 EUR
£504 GBP
B+
Retailer 2
-
€576 EUR
$644 USD
View
B+
Retailer 3
-
€587 EUR
$656 USD
View
B+
Retailer 4
-
€650 EUR
$726 USD
View
Most Expensive
B
MOH London
3455059690 · Oct 29
€1,433 EUR
£1,261 GBP
View
4 more retailers have this diamond
Prices start from €573 EURSave up to €860 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+
1.55ct Round
€573 EUR