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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 $4,634 NZD
$2,612 USD
As of October 29, 2026
Save $27,250 NZD (85%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $31,884 NZD 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 $4,634 to $31,884, a $27,250 spread on the same certified stone. Do Amore Diamonds lists it at $31,884. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $31,884 NZD|Low: $4,634 NZD|High: $36,657 NZD|Avg: $11,634 NZD
Do Amore Diamonds
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
November 1, 2026
Retailer 4$4,634 NZD
Retailer 14$5,043 NZD
Retailer 10$5,190 NZD
Retailer 7$5,376 NZD
Retailer 9$5,500 NZD
Retailer 5$5,660 NZD
Retailer 22$7,018 NZD
Retailer 21$7,599 NZD
Retailer 20$7,889 NZD
Retailer 13$7,952 NZD
Retailer 19$7,995 NZD
Retailer 3$8,158 NZD
Retailer 8$10,248 NZD
Retailer 17$12,633 NZD
Retailer 2$12,714 NZD
Retailer 6$14,437 NZD
Retailer 11$14,855 NZD
Retailer 18$15,122 NZD
Retailer 12$20,278 NZD
Retailer 15$20,676 NZD
Retailer 16$23,971 NZD
Do Amore Diamonds$31,884 NZD

41 data points across 22 retailers

26 retailers$4,634 NZD to $31,884 NZD

A
Cheapest Retailer
-
$4,634 NZD
$2,612 USD
A
Retailer 2
-
$5,043 NZD
$2,842 USD
View
A
Retailer 3
-
$5,190 NZD
$2,925 USD
View
Final sale: no returns
A
Retailer 4
-
$5,376 NZD
$3,030 USD
View
A
Retailer 5
-
$5,500 NZD
$3,100 USD
View
Retailer 6
-
$5,630 NZD
$3,173 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
$5,660 NZD
$3,190 USD
View
A
Retailer 8
-
$7,018 NZD
HK$30,900 HKD
View
A
Retailer 9
-
$7,599 NZD
$4,283 USD
View
A
Retailer 10
-
$7,889 NZD
$4,446 USD
View
A
Retailer 11
-
$7,952 NZD
£3,529 GBP
View
A
Retailer 12
-
$7,995 NZD
$4,506 USD
View
A
Retailer 13
-
$8,158 NZD
$4,598 USD
View
A
Retailer 14
-
$10,248 NZD
£4,548 GBP
View
Retailer 15
-
$12,052 NZD
$6,793 USD
View
Price last confirmed 83 days ago
B+
Retailer 16
-
$12,633 NZD
ZAR 115,023 ZAR
View
B+
Retailer 17
-
$12,714 NZD
A$11,024 AUD
View
B+
Retailer 18
-
$14,354 NZD
$8,090 USD
View
B+
Retailer 19
-
$14,437 NZD
$8,137 USD
View
B+
Retailer 20
-
$14,855 NZD
$8,372 USD
View
B+
Retailer 21
-
$15,122 NZD
£6,711 GBP
View
Retailer 22
-
$16,878 NZD
£7,490 GBP
View
Price last confirmed 23 days ago
B
Retailer 23
-
$20,278 NZD
SGD 15,444 SGD
View
B
Retailer 24
-
$20,676 NZD
$11,653 USD
View
B
Retailer 25
-
$23,971 NZD
$13,510 USD
View
Most Expensive
B
Do Amore Diamonds
27-8CBA032A6 · Oct 31
$31,884 NZD
$17,970 USD
View
25 more retailers have this diamond
Prices start from $4,634 NZDSave up to $27,250 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
$4,634 NZD