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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 $4,375 NZD
$2,466 USD
As of October 29, 2026
Save $31,151 NZD (88%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $35,527 NZD 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 $4,375 to $35,527, a $31,151 spread on the same certified stone. Yadav Diamonds lists it at $35,527. 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: $15,001 NZD|Low: $4,375 NZD|High: $35,527 NZD|Avg: $14,338 NZD|-4.7%
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$4,375 NZD
Retailer 22$4,760 NZD
Retailer 10$4,899 NZD
Retailer 14$5,076 NZD
Retailer 21$5,367 NZD
Retailer 7$7,127 NZD
Retailer 16$7,505 NZD
Retailer 4$7,546 NZD
Retailer 2$7,610 NZD
Retailer 6$7,700 NZD
Retailer 5$8,451 NZD
Retailer 13$9,653 NZD
Retailer 18$11,926 NZD
Retailer 12$12,002 NZD
Retailer 8$14,077 NZD
Retailer 1$15,001 NZD
Retailer 17$15,191 NZD
Retailer 15$19,531 NZD
Retailer 11$25,749 NZD
Retailer 9$30,110 NZD
Retailer 19$30,482 NZD
Retailer 20$30,482 NZD
Yadav Diamonds$35,527 NZD

38 data points across 23 retailers

23 retailers$4,375 NZD to $35,527 NZD

A+
Cheapest Retailer
-
$4,375 NZD
$2,466 USD
A
Retailer 2
-
$4,760 NZD
$2,683 USD
View
A
Retailer 3
-
$4,899 NZD
$2,761 USD
View
Final sale: no returns
A
Retailer 4
-
$5,076 NZD
$2,861 USD
View
A
Retailer 5
-
$5,367 NZD
$3,025 USD
View
Retailer 6
-
$5,566 NZD
$3,137 USD
View
Price last confirmed 20 days ago
A
Retailer 7
-
$7,127 NZD
$4,017 USD
View
A
Retailer 8
-
$7,505 NZD
£3,331 GBP
View
A
Retailer 9
-
$7,546 NZD
$4,253 USD
View
A
Retailer 10
-
$7,610 NZD
$4,289 USD
View
A
Retailer 11
-
$7,700 NZD
$4,340 USD
View
A
Retailer 12
-
$9,653 NZD
£4,284 GBP
View
B+
Retailer 13
-
$11,926 NZD
ZAR 108,585 ZAR
View
B+
Retailer 14
-
$12,002 NZD
A$10,407 AUD
View
B+
Retailer 15
-
$14,077 NZD
$7,934 USD
View
B+
Retailer 16
-
$15,001 NZD
£6,657 GBP
View
B+
Retailer 17
-
$15,191 NZD
$8,562 USD
View
B
Retailer 18
-
$19,531 NZD
$11,008 USD
View
B
Retailer 19
-
$25,749 NZD
$14,512 USD
View
B
Retailer 20
-
$30,110 NZD
$16,970 USD
View
B
Retailer 21
-
$30,482 NZD
$17,180 USD
View
B
Retailer 22
-
$30,482 NZD
$17,180 USD
View
Most Expensive
B
Yadav Diamonds
13275880 · Oct 30
$35,527 NZD
$20,023 USD
View
22 more retailers have this diamond
Prices start from $4,375 NZDSave up to $31,151 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.

A+
4.21ct Oval
$4,375 NZD