Radiant|Lab Grown|GIA

2.78ct D IF Radiant Lab Grown Diamond

GD • D/IF • GIA 6512156785

Certificate GIA 6512156785

Diamond specifications and retailer prices

From $1,962 USD
Save $13,058 USD (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $15,020 USD at Zales
View at Zales

About this 2.78ct lab-grown radiant diamond

This 2.78ct lab-grown radiant sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6512156785. Listed at 24 retailers, with prices from $1,962 to $15,020 at Zales, a $13,058 spread on the same certified stone. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.78
Carat
D
Color
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6512156785
Dimensions9.75 × 6.97 × 4.74 mm
L/W Ratio1.40
Top View
9.75 mm6.97 mm2.78 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512156785
Side View
Table 64.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 68.0%

Caratlytics Score

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

Price History

Last verified: Sep 30
Current: $7,114 USD|Low: $1,568 USD|High: $15,020 USD|Avg: $6,471 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Zales
October 1, 2026
Retailer 18$2,197 USD
Retailer 16$2,477 USD
Retailer 17$2,695 USD
Retailer 3$2,929 USD
Retailer 6$3,757 USD
Retailer 7$3,783 USD
Retailer 15$4,369 USD
Retailer 2$4,770 USD
Retailer 10$4,875 USD
Retailer 14$5,885 USD
Retailer 4$5,953 USD
Retailer 13$5,971 USD
Retailer 11$6,365 USD
Retailer 12$6,899 USD
Retailer 1$7,114 USD
Retailer 5$8,783 USD
Retailer 8$14,690 USD
Retailer 9$15,020 USD
Zales$15,020 USD

19 data points across 19 retailers

24 retailers$1,962 USD to $15,020 USD

A
Cheapest Retailer
-
$1,962 USD
A
Retailer 2
-
$2,135 USD
View
A
Retailer 3
-
$2,197 USD
View
A
Retailer 4
-
$2,245 USD
View
A
Retailer 5
-
$2,477 USD
View
A
Retailer 6
-
$2,695 USD
View
A
Retailer 7
-
$2,929 USD
View
B+
Retailer 8
-
$3,454 USD
View
B+
Retailer 9
-
$3,757 USD
View
B+
Retailer 10
-
$3,783 USD
CA$5,254 CAD
View
B+
Retailer 11
-
$4,369 USD
€4,161 EUR
View
B+
Retailer 12
-
$4,770 USD
£3,756 GBP
View
B
Retailer 13
-
$5,885 USD
View
B
Retailer 14
-
$5,953 USD
View
B
Retailer 15
-
$5,971 USD
A$9,186 AUD
View
B
Retailer 16
-
$6,365 USD
ZAR 102,824 ZAR
View
B
Retailer 17
-
$6,899 USD
£5,432 GBP
View
B
Retailer 18
-
$7,114 USD
A$10,945 AUD
View
B
Retailer 19
-
$8,783 USD
View
B
Retailer 20
-
$10,320 USD
View
B
Retailer 21
-
$11,795 USD
View
B
Retailer 22
-
$14,690 USD
View
B
Retailer 23
-
$15,020 USD
View
Most Expensive
B
Zales
522787377 · Oct 1
$15,020 USD
View
23 more retailers have this diamond
Prices start from $1,962 USDSave up to $13,058 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.

A
2.78ct Radiant
$1,962 USD