CaratHunter
Plans
Cushion|Lab Grown|GIA

4.21ct D FL Cushion Lab Grown Diamond

EX • D/FL • GIA 6532034794

Certificate GIA 6532034794

Diamond specifications and retailer prices

From $8,441 USD
As of October 30, 2026
Save $26,809 USD (76%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $35,250 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.21ct lab-grown cushion diamond

This 4.21ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532034794. Listed at 12 retailers as of October 30, 2026, with prices from $8,441 to $35,250, a $26,809 spread on the same certified stone. Taylor and Hart lists it at $35,250. 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

4.21
Carat
D
Color
FL
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6532034794
Dimensions9.39 × 9.36 × 6.29 mm
L/W Ratio1.00
Top View
9.39 mm9.36 mm4.21 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532034794
Side View
Table 59.0%CrownGirdle: STK-STKPavilionCulet: NoneDepth 67.2%

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 30
Current: $18,285 USD|Low: $8,441 USD|High: $120,419 USD|Avg: $27,723 USD|-9.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
October 29, 2026
Retailer 7$8,441 USD
Retailer 3$8,667 USD
Retailer 8$8,957 USD
Retailer 11$10,155 USD
Retailer 9$10,257 USD
Retailer 5$11,462 USD
Retailer 2$11,776 USD
Retailer 1$18,285 USD
Retailer 6$18,760 USD
Retailer 12$22,110 USD
Taylor and Hart$35,250 USD
Retailer 10$55,170 USD
Retailer 4$120,419 USD

27 data points across 13 retailers

12 retailers$8,441 USD to $35,250 USD

A
Cheapest Retailer
-
$8,441 USD
Retailer 2
-
$8,667 USD
View
Price last confirmed 54 days ago
A
Retailer 3
-
$8,957 USD
View
B+
Retailer 4
-
$10,155 USD
View
Retailer 5
-
$10,257 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$11,462 USD
View
B+
Retailer 7
-
$11,776 USD
HK$92,000 HKD
View
B+
Retailer 8
-
$18,285 USD
£14,398 GBP
View
B+
Retailer 9
-
$18,760 USD
View
B+
Retailer 10
-
$22,110 USD
View
Most Expensive
B
Taylor and Hart
3ZW3EUB · Oct 30
$35,250 USD
View
10 more retailers have this diamond
Prices start from $8,441 USDSave up to $26,809 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
4.21ct Cushion
$8,441 USD