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Oval|Lab Grown|IGI

4.21ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG770633964

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG770633964

Diamond specifications and retailer prices

From $3,511 AUD
$2,466 USD
As of October 29, 2026
Save $24,994 AUD (88%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $28,505 AUD at Yadav Diamonds · As of October 30, 2026
View at Yadav 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 LG770633964 or 770633964. Listed at 23 retailers as of October 29, 2026, with prices from $3,511 to $28,505, a $24,994 spread on the same certified stone. Yadav Diamonds lists it at $28,505. 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 angle35.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770633964
Dimensions12.98 × 9.09 × 5.69 mm
L/W Ratio1.43
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
12.98 mm9.09 mm4.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770633964
Side View
Table 59.0%Crown 35.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A+
Exceptional
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 29
Current: $6,022 AUD|Low: $3,511 AUD|High: $28,505 AUD|Avg: $11,122 AUD|-10.9%
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
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Yadav Diamonds
November 1, 2026
Retailer 3$3,511 AUD
Retailer 22$3,820 AUD
Retailer 10$3,931 AUD
Retailer 14$4,073 AUD
Retailer 21$4,306 AUD
Retailer 7$5,719 AUD
Retailer 1$6,022 AUD
Retailer 4$6,055 AUD
Retailer 2$6,106 AUD
Retailer 6$6,178 AUD
Retailer 5$6,780 AUD
Retailer 13$7,745 AUD
Retailer 16$9,569 AUD
Retailer 20$9,646 AUD
Retailer 8$11,294 AUD
Retailer 19$12,052 AUD
Retailer 12$12,189 AUD
Retailer 15$15,670 AUD
Retailer 11$20,659 AUD
Retailer 9$24,158 AUD
Retailer 17$24,457 AUD
Retailer 18$24,457 AUD
Yadav Diamonds$28,505 AUD

39 data points across 23 retailers

23 retailers$3,511 AUD to $28,505 AUD

A+
Cheapest Retailer
-
$3,511 AUD
$2,466 USD
A
Retailer 2
-
$3,820 AUD
$2,683 USD
View
A
Retailer 3
-
$3,931 AUD
$2,761 USD
View
Final sale: no returns
A
Retailer 4
-
$4,073 AUD
$2,861 USD
View
A
Retailer 5
-
$4,306 AUD
$3,025 USD
View
Retailer 6
-
$4,466 AUD
$3,137 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
$5,719 AUD
$4,017 USD
View
A
Retailer 8
-
$6,022 AUD
£3,331 GBP
View
A
Retailer 9
-
$6,055 AUD
$4,253 USD
View
A
Retailer 10
-
$6,106 AUD
$4,289 USD
View
A
Retailer 11
-
$6,178 AUD
$4,340 USD
View
A
Retailer 12
-
$7,745 AUD
£4,284 GBP
View
B+
Retailer 13
-
$9,569 AUD
ZAR 108,585 ZAR
View
Retailer 14
-
$9,646 AUD
View
Price last confirmed 9 days ago
B+
Retailer 15
-
$11,294 AUD
$7,934 USD
View
B+
Retailer 16
-
$12,052 AUD
£6,666 GBP
View
B+
Retailer 17
-
$12,189 AUD
$8,562 USD
View
B
Retailer 18
-
$15,670 AUD
$11,008 USD
View
B
Retailer 19
-
$20,659 AUD
$14,512 USD
View
B
Retailer 20
-
$24,158 AUD
$16,970 USD
View
B
Retailer 21
-
$24,457 AUD
$17,180 USD
View
B
Retailer 22
-
$24,457 AUD
$17,180 USD
View
Most Expensive
B
Yadav Diamonds
13275880 · Oct 30
$28,505 AUD
$20,023 USD
View
22 more retailers have this diamond
Prices start from $3,511 AUDSave up to $24,994 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
$3,511 AUD