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Round|Lab Grown|GIA

2.78ct D IF Round Lab Grown Diamond

EX • D/IF • GIA 1525442174

Certificate GIA 1525442174

Diamond specifications and retailer prices

From £2,326 GBP
$3,117 USD
As of October 30, 2026
Save £7,473 GBP (76%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £9,799 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.78ct lab-grown round diamond

This 2.78ct lab-grown round sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 1525442174. Listed at 2 retailers as of October 30, 2026, with prices from £2,326 to £9,799, a £7,473 spread on the same certified stone. Brilliant Earth lists it at £9,799. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.78
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 1525442174
Dimensions9.04 × 9.06 × 5.51 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Cert comments
This is a man-made diamond.
Top View
9.04 mm9.06 mm2.78 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1525442174
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: £9,799 GBP|Low: £2,320 GBP|High: £11,891 GBP|Avg: £7,214 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 2£2,326 GBP
Retailer 5£5,892 GBP
Retailer 4£6,058 GBP
Brilliant Earth£9,799 GBP
Retailer 3£11,891 GBP

4 data points across 5 retailers

2 retailers£2,326 GBP to £9,799 GBP

B+
Cheapest Retailer
-
£2,326 GBP
$3,117 USD
Most Expensive
B
Brilliant Earth
21409984Y · Oct 31
£9,799 GBP
$13,130 USD
View
1 more retailer has this diamond
Prices start from £2,326 GBPSave up to £7,473 GBP

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+
2.78ct Round
£2,326 GBP