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Round|Lab Grown|IGI

4.26ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG711516896

Shape and cutting style on the report: Round brilliant

Certificate IGI LG711516896

Diamond specifications and retailer prices

From $3,394 NZD
$1,913 USD
As of October 29, 2026
Save $33,653 NZD (91%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $37,047 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.26ct lab-grown round diamond

This 4.26ct lab-grown round 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 LG711516896 or 711516896. Listed at 27 retailers as of October 29, 2026, with prices from $3,394 to $37,047, a $33,653 spread on the same certified stone. Brilliant Earth lists it at $37,047. 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

4.26
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG711516896
Dimensions10.43 × 10.39 × 6.43 mm
L/W Ratio1.00
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
10.43 mm10.39 mm4.26 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG711516896
Side View
Table 56.0%Crown 34.4°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
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: $37,047 NZD|Low: $3,394 NZD|High: $42,424 NZD|Avg: $9,878 NZD|-12.7%
Brilliant Earth
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
October 31, 2026
Retailer 4$3,394 NZD
Retailer 21$3,692 NZD
Retailer 10$3,801 NZD
Retailer 15$3,937 NZD
Retailer 18$4,232 NZD
Retailer 9$4,407 NZD
Retailer 5$5,530 NZD
Retailer 2$5,956 NZD
Retailer 6$5,972 NZD
Retailer 22$6,464 NZD
Retailer 17$6,573 NZD
Retailer 3$6,588 NZD
Retailer 13$9,249 NZD
Retailer 19$9,324 NZD
Retailer 20$10,876 NZD
Retailer 7$11,132 NZD
Retailer 12$11,399 NZD
Retailer 16$11,853 NZD
Retailer 14$15,195 NZD
Retailer 11$20,248 NZD
Retailer 8$23,350 NZD
Brilliant Earth$37,047 NZD

38 data points across 22 retailers

27 retailers$3,394 NZD to $37,047 NZD

A
Cheapest Retailer
-
$3,394 NZD
$1,913 USD
A
Retailer 2
-
$3,692 NZD
$2,081 USD
View
A
Retailer 3
-
$3,801 NZD
$2,142 USD
View
Final sale: no returns
A
Retailer 4
-
$3,937 NZD
$2,219 USD
View
A
Retailer 5
-
$4,232 NZD
$2,385 USD
View
Retailer 6
-
$4,356 NZD
$2,455 USD
View
Price last confirmed 20 days ago
A
Retailer 7
-
$4,407 NZD
$2,484 USD
View
A
Retailer 8
-
$5,530 NZD
$3,117 USD
View
A
Retailer 9
-
$5,956 NZD
£2,643 GBP
View
A
Retailer 10
-
$5,972 NZD
$3,366 USD
View
A
Retailer 11
-
$6,464 NZD
$3,643 USD
View
A
Retailer 12
-
$6,573 NZD
€3,528 EUR
View
A
Retailer 13
-
$6,588 NZD
$3,713 USD
View
A
Retailer 14
-
$9,249 NZD
ZAR 84,214 ZAR
View
Retailer 15
-
$9,324 NZD
A$8,085 AUD
View
Price last confirmed 9 days ago
A
Retailer 16
-
$9,987 NZD
$5,629 USD
View
Retailer 17
-
$10,876 NZD
$6,130 USD
View
Price last confirmed 10 days ago
B+
Retailer 18
-
$11,132 NZD
$6,274 USD
View
B+
Retailer 19
-
$11,399 NZD
$6,424 USD
View
B+
Retailer 20
-
$11,853 NZD
£5,260 GBP
View
B+
Retailer 21
-
$15,195 NZD
$8,564 USD
View
B+
Retailer 22
-
$17,672 NZD
$9,960 USD
View
B
Retailer 23
-
$20,248 NZD
$11,412 USD
View
B
Retailer 24
-
$23,350 NZD
$13,160 USD
View
B
Retailer 25
-
$33,215 NZD
$18,720 USD
View
B
Retailer 26
-
$33,215 NZD
$18,720 USD
View
Most Expensive
B
Brilliant Earth
16521058A · Oct 30
$37,047 NZD
$20,880 USD
View
26 more retailers have this diamond
Prices start from $3,394 NZDSave up to $33,653 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
4.26ct Round
$3,394 NZD