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Oval|Lab Grown|IGI

4.21ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG712506113

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG712506113

Diamond specifications and retailer prices

From $3,718 AUD
$2,612 USD
As of October 29, 2026
Save $21,864 AUD (85%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $25,582 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 IGI LG712506113 or 712506113. Listed at 26 retailers as of October 29, 2026, with prices from $3,718 to $25,582, a $21,864 spread on the same certified stone. Do Amore Diamonds lists it at $25,582. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG712506113
Dimensions12.99 × 9.18 × 5.74 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.99 mm9.18 mm4.21 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG712506113
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $25,582 AUD|Low: $3,718 AUD|High: $29,412 AUD|Avg: $9,335 AUD
Do Amore Diamonds
Retailer 2
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Retailer 7
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Retailer 22
November 1, 2026
Retailer 4$3,718 AUD
Retailer 14$4,046 AUD
Retailer 10$4,164 AUD
Retailer 7$4,314 AUD
Retailer 9$4,413 AUD
Retailer 5$4,541 AUD
Retailer 22$5,631 AUD
Retailer 21$6,097 AUD
Retailer 20$6,329 AUD
Retailer 13$6,381 AUD
Retailer 19$6,415 AUD
Retailer 3$6,546 AUD
Retailer 8$8,223 AUD
Retailer 17$10,136 AUD
Retailer 2$10,201 AUD
Retailer 6$11,584 AUD
Retailer 11$11,918 AUD
Retailer 18$12,133 AUD
Retailer 12$16,270 AUD
Retailer 15$16,589 AUD
Retailer 16$19,233 AUD
Do Amore Diamonds$25,582 AUD

41 data points across 22 retailers

26 retailers$3,718 AUD to $25,582 AUD

A
Cheapest Retailer
-
$3,718 AUD
$2,612 USD
A
Retailer 2
-
$4,046 AUD
$2,842 USD
View
A
Retailer 3
-
$4,164 AUD
$2,925 USD
View
Final sale: no returns
A
Retailer 4
-
$4,314 AUD
$3,030 USD
View
A
Retailer 5
-
$4,413 AUD
$3,100 USD
View
Retailer 6
-
$4,517 AUD
$3,173 USD
View
Price last confirmed 20 days ago
A
Retailer 7
-
$4,541 AUD
$3,190 USD
View
A
Retailer 8
-
$5,631 AUD
HK$30,900 HKD
View
A
Retailer 9
-
$6,097 AUD
$4,283 USD
View
A
Retailer 10
-
$6,329 AUD
$4,446 USD
View
A
Retailer 11
-
$6,381 AUD
£3,529 GBP
View
A
Retailer 12
-
$6,415 AUD
$4,506 USD
View
A
Retailer 13
-
$6,546 AUD
$4,598 USD
View
A
Retailer 14
-
$8,223 AUD
£4,548 GBP
View
Retailer 15
-
$9,670 AUD
$6,793 USD
View
Price last confirmed 83 days ago
B+
Retailer 16
-
$10,136 AUD
ZAR 115,023 ZAR
View
B+
Retailer 17
-
$10,201 AUD
View
B+
Retailer 18
-
$11,517 AUD
$8,090 USD
View
B+
Retailer 19
-
$11,584 AUD
$8,137 USD
View
B+
Retailer 20
-
$11,918 AUD
$8,372 USD
View
B+
Retailer 21
-
$12,133 AUD
£6,711 GBP
View
Retailer 22
-
$13,542 AUD
£7,490 GBP
View
Price last confirmed 23 days ago
B
Retailer 23
-
$16,270 AUD
SGD 15,444 SGD
View
B
Retailer 24
-
$16,589 AUD
$11,653 USD
View
B
Retailer 25
-
$19,233 AUD
$13,510 USD
View
Most Expensive
B
Do Amore Diamonds
27-8CBA032A6 · Oct 31
$25,582 AUD
$17,970 USD
View
25 more retailers have this diamond
Prices start from $3,718 AUDSave up to $21,864 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
4.21ct Oval
$3,718 AUD