Oval|Lab Grown|GCAL

4.21ct D IF Oval Lab Grown Diamond

ID • D/IF • GCAL 360736080

Shape and cutting style on the report: Oval brilliant

Certificate GCAL 360736080

Diamond specifications and retailer prices

From $13,398 NZD
$7,551 USD
As of October 31, 2026
Save $38,305 NZD (74%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $59,919 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.21ct lab-grown oval diamond

This 4.21ct lab-grown oval 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 360736080. Listed at 16 retailers as of October 30, 2026, with a 286% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 360736080
Dimensions13.17 × 9.22 × 5.65 mm
L/W Ratio1.43
Culet sizeNone
Top View
13.17 mm9.22 mm4.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 360736080
Side View
Table 59.0%Crown 32.4°Girdle: STK-STKPavilion 40.6°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $21,881 NZD|Low: $13,398 NZD|High: $93,098 NZD|Avg: $32,682 NZD|+0.0%
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
Taylor and Hart
November 1, 2026
Retailer 14$13,398 NZD
Retailer 11$14,918 NZD
Retailer 10$15,514 NZD
Retailer 5$16,707 NZD
Retailer 12$17,305 NZD
Retailer 13$18,999 NZD
Retailer 9$19,249 NZD
Retailer 6$21,481 NZD
Retailer 1$21,881 NZD
Retailer 8$34,278 NZD
Retailer 2$51,703 NZD
Retailer 4$51,703 NZD
Retailer 7$52,980 NZD
Taylor and Hart$59,919 NZD
Retailer 3$93,098 NZD

45 data points across 15 retailers

16 retailers$13,398 NZD to $51,703 NZD

B+
Cheapest Retailer
-
$13,398 NZD
$7,551 USD
B+
Retailer 2
-
$14,918 NZD
$8,408 USD
View
B+
Retailer 3
-
$15,514 NZD
$8,744 USD
View
B+
Retailer 4
-
$16,707 NZD
$9,416 USD
View
Final sale: no returns
Retailer 5
-
$17,305 NZD
$9,753 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
$17,305 NZD
$9,753 USD
View
B+
Retailer 7
-
$19,249 NZD
$10,849 USD
View
B+
Retailer 8
-
$21,481 NZD
$12,107 USD
View
B+
Retailer 9
-
$21,881 NZD
£9,711 GBP
View
B
Retailer 10
-
$34,278 NZD
£15,212 GBP
View
B
Retailer 11
-
$35,527 NZD
$20,023 USD
View
B
Retailer 12
-
$51,703 NZD
$29,140 USD
View
B
Retailer 13
-
$51,703 NZD
$29,140 USD
View
Retailer 14
-
$52,980 NZD
$29,860 USD
View
Price under review
Most Expensive
Taylor and Hart
MU038XP · Oct 31
$59,919 NZD
$33,770 USD
View
Price under review
14 more retailers have this diamond
Prices start from $13,398 NZDSave up to $38,305 NZD

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+
4.21ct Oval
$13,398 NZD