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Radiant|Lab Grown|IGI

2.78ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG724573630

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG724573630

Diamond specifications and retailer prices

From $1,568 NZD
$884 USD
As of October 30, 2026
Save $12,360 NZD (89%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $13,928 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 2.78ct lab-grown radiant diamond

This 2.78ct lab-grown radiant sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG724573630 or 724573630. Listed at 23 retailers as of October 30, 2026, with prices from $1,568 to $13,928, a $12,360 spread on the same certified stone. Do Amore Diamonds lists it at $13,928. 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

2.78
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG724573630
Dimensions9.91 × 7.10 × 4.72 mm
L/W Ratio1.40
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
9.91 mm7.10 mm2.78 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG724573630
Side View
Table 62.0%Crown 40.4°Girdle: MED-STKPavilion 36.9°Culet: NoneDepth 66.5%

Caratlytics Score

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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 30
Current: $13,928 NZD|Low: $1,568 NZD|High: $15,844 NZD|Avg: $4,744 NZD|-12.1%
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$1,568 NZD
Retailer 3$1,705 NZD
Retailer 14$1,753 NZD
Retailer 7$1,819 NZD
Retailer 22$2,049 NZD
Retailer 2$2,209 NZD
Retailer 10$2,420 NZD
Retailer 5$2,920 NZD
Retailer 13$3,070 NZD
Retailer 8$3,762 NZD
Retailer 21$3,864 NZD
Retailer 11$4,134 NZD
Retailer 16$4,765 NZD
Retailer 19$5,179 NZD
Retailer 9$5,543 NZD
Retailer 6$5,688 NZD
Retailer 20$6,816 NZD
Retailer 15$7,099 NZD
Retailer 12$7,148 NZD
Retailer 17$7,574 NZD
Retailer 18$12,704 NZD
Do Amore Diamonds$13,928 NZD

32 data points across 22 retailers

23 retailers$1,568 NZD to $13,928 NZD

A
Cheapest Retailer
-
$1,568 NZD
$884 USD
A
Retailer 2
-
$1,705 NZD
$961 USD
View
A
Retailer 3
-
$1,753 NZD
$988 USD
View
Final sale: no returns
A
Retailer 4
-
$1,819 NZD
$1,025 USD
View
A
Retailer 5
-
$2,049 NZD
$1,155 USD
View
A
Retailer 6
-
$2,209 NZD
£980 GBP
View
A
Retailer 7
-
$2,420 NZD
$1,364 USD
View
A
Retailer 8
-
$2,920 NZD
$1,646 USD
View
A
Retailer 9
-
$3,070 NZD
£1,363 GBP
View
A
Retailer 10
-
$3,762 NZD
$2,120 USD
View
A
Retailer 11
-
$3,864 NZD
$2,178 USD
View
A
Retailer 12
-
$4,134 NZD
$2,330 USD
View
Retailer 13
-
$4,328 NZD
$2,439 USD
View
Price last confirmed 31 days ago
A
Retailer 14
-
$4,765 NZD
A$4,132 AUD
View
A
Retailer 15
-
$5,179 NZD
ZAR 47,151 ZAR
View
B+
Retailer 16
-
$5,543 NZD
£2,460 GBP
View
B+
Retailer 17
-
$5,688 NZD
$3,206 USD
View
B+
Retailer 18
-
$6,816 NZD
£3,025 GBP
View
B+
Retailer 19
-
$7,099 NZD
SGD 5,407 SGD
View
B+
Retailer 20
-
$7,148 NZD
$4,028 USD
View
B+
Retailer 21
-
$7,574 NZD
A$6,567 AUD
View
B
Retailer 22
-
$12,704 NZD
$7,160 USD
View
Most Expensive
B
Do Amore Diamonds
27-768322126 · Oct 31
$13,928 NZD
$7,850 USD
View
22 more retailers have this diamond
Prices start from $1,568 NZDSave up to $12,360 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
2.78ct Radiant
$1,568 NZD