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Round|Lab Grown|GIA

2.55ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • GIA 6495183843

Certificate GIA 6495183843

Diamond specifications and retailer prices

From €760 EUR
$849 USD
As of October 31, 2026
Save €1,711 EUR (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €2,470 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.55ct lab-grown round diamond

This 2.55ct lab-grown round sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6495183843. Listed at 8 retailers as of October 31, 2026, with prices from €760 to €2,470, a €1,711 spread on the same certified stone. Brilliant Earth lists it at €2,470. 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

2.55
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabGIA
CertificateGIA 6495183843
Dimensions8.88 × 8.85 × 5.32 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
8.88 mm8.85 mm2.55 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6495183843
Side View
Table 59.0%Crown 34.5°Girdle: MED-MEDPavilion 40.6°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €2,470 EUR|Low: €760 EUR|High: €4,000 EUR|Avg: €1,664 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7€760 EUR
Retailer 6€909 EUR
Retailer 8€919 EUR
Retailer 5€1,077 EUR
Retailer 4€1,360 EUR
Retailer 3€1,475 EUR
Retailer 2€1,701 EUR
Brilliant Earth€2,470 EUR
Retailer 9€4,000 EUR

9 data points across 9 retailers

8 retailers€760 EUR to €2,470 EUR

A
Cheapest Retailer
-
€760 EUR
$849 USD
Final sale: no returns
A
Retailer 2
-
€909 EUR
$1,015 USD
View
B+
Retailer 3
-
€919 EUR
$1,027 USD
View
B+
Retailer 4
-
€1,077 EUR
HK$9,400 HKD
View
B+
Retailer 5
-
€1,327 EUR
$1,483 USD
View
B
Retailer 6
-
€1,360 EUR
A$2,338 AUD
View
B
Retailer 7
-
€1,701 EUR
$1,900 USD
View
Most Expensive
B
Brilliant Earth
16357128Y · Oct 31
€2,470 EUR
$2,760 USD
View
7 more retailers have this diamond
Prices start from €760 EURSave up to €1,711 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
2.55ct Round
€760 EUR