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Round|Lab Grown|GIA

2.78ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • GIA 7482198575

Shape and cutting style on the report: Round brilliant

Certificate GIA 7482198575

Diamond specifications and retailer prices

From $611 USD
As of October 29, 2026
Save $2,701 USD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,420 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 2.78ct lab-grown round diamond

This 2.78ct lab-grown round sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7482198575. Listed at 10 retailers as of October 29, 2026, with a 442% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

2.78
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabGIA
CertificateGIA 7482198575
Dimensions9.06 × 9.13 × 5.52 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Feather
Top View
9.06 mm9.13 mm2.78 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7482198575
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.7%

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 29
Current: $5,420 USD|Low: $507 USD|High: $5,560 USD|Avg: $1,769 USD|-2.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 10$611 USD
Retailer 8$684 USD
Retailer 13$684 USD
Retailer 12$1,162 USD
Retailer 7$1,165 USD
Retailer 2$1,260 USD
Retailer 3$1,315 USD
Retailer 5$1,376 USD
Retailer 4$1,436 USD
Retailer 9$1,879 USD
Retailer 11$2,199 USD
Retailer 6$3,312 USD
Do Amore Diamonds$5,420 USD

39 data points across 13 retailers

10 retailers$611 USD to $3,312 USD

A
Cheapest Retailer
-
$611 USD
A
Retailer 2
-
$684 USD
View
Final sale: no returns
A
Retailer 3
-
$684 USD
View
B+
Retailer 4
-
$1,162 USD
View
B+
Retailer 5
-
$1,165 USD
View
B+
Retailer 6
-
$1,260 USD
£992 GBP
View
B
Retailer 7
-
$1,879 USD
View
B
Retailer 8
-
$2,199 USD
View
B
Retailer 9
-
$3,312 USD
£2,608 GBP
View
Most Expensive
Do Amore Diamonds
27-89B6BE83A · Oct 29
$5,420 USD
View
Price under review
9 more retailers have this diamond
Prices start from $611 USDSave up to $2,701 USD

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
2.78ct Round
$611 USD