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Radiant|Lab Grown|GCAL

3.78ct D IF Radiant Lab Grown Diamond

EX • D/IF • GCAL 361226164

Certificate GCAL 361226164

Diamond specifications and retailer prices

From $4,334 USD
Save $13,765 USD (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $18,099 USD at Taylor and Hart
View at Taylor and Hart

About this 3.78ct lab-grown radiant diamond

This 3.78ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GCAL 361226164. Listed at 10 retailers, with prices from $4,334 to $18,099 at Taylor and Hart, a $13,765 spread on the same certified stone. 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

3.78
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle59.6°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 361226164
Dimensions10.85 × 7.72 × 5.22 mm
L/W Ratio1.41
Culet sizeNone
Top View
10.85 mm7.72 mm3.78 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 361226164
Side View
Table 65.0%Crown 43.5°GirdlePavilion 59.6°Culet: NoneDepth 67.5%

Caratlytics Score

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

Price History

Last verified: Sep 30
Current: $7,779 USD|Low: $3,466 USD|High: $18,099 USD|Avg: $8,088 USD|+11.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Taylor and Hart
October 1, 2026
Retailer 3$4,334 USD
Retailer 6$4,542 USD
Retailer 8$4,854 USD
Retailer 7$4,958 USD
Retailer 9$5,253 USD
Retailer 2$6,282 USD
Retailer 4$6,357 USD
Retailer 1$7,779 USD
Retailer 5$10,535 USD
Taylor and Hart$18,099 USD

35 data points across 10 retailers

10 retailers$4,334 USD to $18,099 USD

A
Cheapest Retailer
-
$4,334 USD
A
Retailer 2
-
$4,542 USD
View
A
Retailer 3
-
$4,854 USD
View
A
Retailer 4
-
$4,958 USD
View
B+
Retailer 5
-
$5,253 USD
View
B+
Retailer 6
-
$6,282 USD
View
B+
Retailer 7
-
$6,371 USD
£5,016 GBP
View
B+
Retailer 8
-
$7,779 USD
View
B
Retailer 9
-
$10,535 USD
£8,295 GBP
View
Most Expensive
B
Taylor and Hart
PY3JWBN · Sep 30
$18,099 USD
View
9 more retailers have this diamond
Prices start from $4,334 USDSave up to $13,765 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
3.78ct Radiant
$4,334 USD