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Round|Lab Grown|IGI

4.27ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG739546597

Shape and cutting style on the report: Round brilliant

Certificate IGI LG739546597

Diamond specifications and retailer prices

From $4,395 NZD
$2,477 USD
As of October 29, 2026
Save $20,960 NZD (83%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $25,355 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.27ct lab-grown round diamond

This 4.27ct 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 LG739546597 or 739546597. Listed at 26 retailers as of October 29, 2026, with prices from $4,395 to $25,355, a $20,960 spread on the same certified stone. Brilliant Earth lists it at $25,355. 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

4.27
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739546597
Dimensions10.44 × 10.36 × 6.41 mm
L/W Ratio1.01
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
10.44 mm10.36 mm4.27 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739546597
Side View
Table 56.0%Crown 33.8°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
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: $25,355 NZD|Low: $3,963 NZD|High: $42,796 NZD|Avg: $11,117 NZD|-40.8%
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
Retailer 23
October 31, 2026
Retailer 3$3,963 NZD
Retailer 22$4,395 NZD
Retailer 21$4,782 NZD
Retailer 18$4,920 NZD
Retailer 4$5,098 NZD
Retailer 14$5,328 NZD
Retailer 15$6,200 NZD
Retailer 13$6,854 NZD
Retailer 23$7,007 NZD
Retailer 6$7,284 NZD
Retailer 5$7,642 NZD
Retailer 8$7,665 NZD
Retailer 2$8,110 NZD
Retailer 9$8,875 NZD
Retailer 17$10,850 NZD
Retailer 20$10,938 NZD
Retailer 16$13,334 NZD
Retailer 11$13,611 NZD
Retailer 19$13,721 NZD
Retailer 10$14,310 NZD
Retailer 7$19,968 NZD
Retailer 12$24,203 NZD
Brilliant Earth$25,355 NZD

30 data points across 23 retailers

26 retailers$4,395 NZD to $25,355 NZD

Retailer 1
-
$3,963 NZD
£1,759 GBP
Price last confirmed 14 days ago
A
Retailer 2
-
$4,395 NZD
$2,477 USD
View
A
Retailer 3
-
$4,782 NZD
$2,695 USD
View
A
Retailer 4
-
$4,920 NZD
$2,773 USD
View
Final sale: no returns
A
Retailer 5
-
$5,098 NZD
$2,873 USD
View
A
Retailer 6
-
$5,328 NZD
$3,003 USD
View
A
Retailer 7
-
$6,200 NZD
HK$27,300 HKD
View
A
Retailer 8
-
$6,854 NZD
£3,042 GBP
View
A
Retailer 9
-
$7,007 NZD
$3,949 USD
View
A
Retailer 10
-
$7,284 NZD
$4,105 USD
View
A
Retailer 11
-
$7,642 NZD
$4,307 USD
View
A
Retailer 12
-
$7,665 NZD
$4,320 USD
View
A
Retailer 13
-
$8,110 NZD
€4,353 EUR
View
A
Retailer 14
-
$8,875 NZD
$5,002 USD
View
A
Retailer 15
-
$10,850 NZD
ZAR 98,792 ZAR
View
Retailer 16
-
$10,938 NZD
A$9,484 AUD
View
Price last confirmed 9 days ago
B+
Retailer 17
-
$13,334 NZD
$7,515 USD
View
B+
Retailer 18
-
$13,611 NZD
$7,671 USD
View
B+
Retailer 19
-
$13,721 NZD
£6,089 GBP
View
B+
Retailer 20
-
$14,310 NZD
$8,065 USD
View
B+
Retailer 21
-
$17,788 NZD
$10,026 USD
View
B+
Retailer 22
-
$17,977 NZD
SGD 13,692 SGD
View
B
Retailer 23
-
$19,691 NZD
$11,098 USD
View
Retailer 24
-
$19,968 NZD
A$17,314 AUD
View
Price last confirmed 22 days ago
B
Retailer 25
-
$24,203 NZD
$13,641 USD
View
Most Expensive
B
Brilliant Earth
16177765A · Oct 30
$25,355 NZD
$14,290 USD
View
25 more retailers have this diamond
Prices start from $4,395 NZDSave up to $20,960 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
4.27ct Round
$4,395 NZD