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Round|Lab Grown|GIA

1.78ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • GIA 6472210025

Certificate GIA 6472210025

Diamond specifications and retailer prices

From €1,052 EUR
$1,171 USD
As of October 30, 2026
Save €290 EUR (22%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €1,342 EUR at GemTrove · As of October 29, 2026
View at GemTrove

About this 1.78ct lab-grown round diamond

This 1.78ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6472210025. Listed at 2 retailers as of October 29, 2026, with prices from €1,052 to €1,342, a €290 spread on the same certified stone. GemTrove lists it at €1,342. 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

1.78
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 6472210025
Dimensions7.80 × 7.76 × 4.79 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.80 mm7.76 mm1.78 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6472210025
Side View
Table 57.0%Crown 35°Girdle: ThickPavilion 40.8°Culet: NoneDepth 61.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,342 EUR|Low: €1,011 EUR|High: €2,713 EUR|Avg: €1,548 EUR
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
September 9, 2026
Retailer 7€1,011 EUR
Retailer 2€1,052 EUR
Retailer 5€1,132 EUR
Retailer 6€1,220 EUR
GemTrove€1,342 EUR
Retailer 4€1,412 EUR
Retailer 3€2,689 EUR

53 data points across 7 retailers

2 retailers€1,052 EUR to €1,342 EUR

B
Cheapest Retailer
-
€1,052 EUR
$1,171 USD
Most Expensive
B+
GemTrove
GT-L-01020074-98 · Oct 29
€1,342 EUR
A$2,298 AUD
View
1 more retailer has this diamond
Prices start from €1,052 EURSave up to €290 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+
1.78ct Round
€1,052 EUR