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Round|Lab Grown|GIA

2.78ct D IF Round Lab Grown Diamond

EX • D/IF • GIA 7538315690

Certificate GIA 7538315690

Diamond specifications and retailer prices

From $2,898 AUD
$2,036 USD
As of November 1, 2026
Save $15,793 AUD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $18,692 AUD 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 7538315690. Listed at 11 retailers as of October 31, 2026, with prices from $2,898 to $18,692, a $15,793 spread on the same certified stone. Brilliant Earth lists it at $18,692. 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 angle35.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabGIA
CertificateGIA 7538315690
Dimensions8.96 × 9.01 × 5.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This is a man-made diamond.
Top View
8.96 mm9.01 mm2.78 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7538315690
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.8%

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: Nov 1
Current: $18,692 AUD|Low: $2,617 AUD|High: $19,276 AUD|Avg: $7,493 AUD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 11$2,617 AUD
Retailer 6$2,898 AUD
Retailer 2$3,758 AUD
Retailer 10$4,210 AUD
Retailer 5$4,405 AUD
Retailer 3$5,117 AUD
Retailer 9$6,640 AUD
Retailer 8$8,488 AUD
Retailer 12$8,632 AUD
Retailer 4$9,835 AUD
Retailer 7$15,432 AUD
Brilliant Earth$18,692 AUD

18 data points across 12 retailers

11 retailers$2,898 AUD to $18,692 AUD

Retailer 1
-
$2,282 AUD
$1,603 USD
Price last confirmed 33 days ago
Retailer 2
-
$2,483 AUD
$1,744 USD
View
Price last confirmed 38 days ago
A
Retailer 3
-
$2,898 AUD
$2,036 USD
View
B+
Retailer 4
-
$3,758 AUD
$2,640 USD
View
B+
Retailer 5
-
$4,210 AUD
$2,957 USD
View
A
Retailer 6
-
$4,405 AUD
$3,094 USD
View
Retailer 7
-
$5,477 AUD
$3,847 USD
View
Price last confirmed 31 days ago
B+
Retailer 8
-
$6,640 AUD
$4,664 USD
View
B+
Retailer 9
-
$8,488 AUD
£4,695 GBP
View
B
Retailer 10
-
$15,432 AUD
$10,840 USD
View
Most Expensive
B
Brilliant Earth
21411889Y · Oct 31
$18,692 AUD
$13,130 USD
View
10 more retailers have this diamond
Prices start from $2,898 AUDSave up to $15,793 AUD

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
$2,898 AUD