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Radiant|Lab Grown|IGI

5.12ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG773639235

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

Certificate IGI LG773639235

Diamond specifications and retailer prices

From $15,772 NZD
$8,889 USD
As of October 31, 2026
Save $64,160 NZD (80%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $79,932 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 5.12ct lab-grown radiant diamond

This 5.12ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG773639235 or 773639235. Listed at 23 retailers as of October 31, 2026, with prices from $15,772 to $79,932, a $64,160 spread on the same certified stone. Do Amore Diamonds lists it at $79,932. 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

5.12
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773639235
Dimensions12.42 × 8.57 × 5.74 mm
L/W Ratio1.45
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
12.42 mm8.57 mm5.12 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG773639235
Side View
Table 63.0%Crown 39.6°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 67.0%

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 31
Current: $79,932 NZD|Low: $15,772 NZD|High: $161,525 NZD|Avg: $43,390 NZD|-17.5%
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
October 31, 2026
Retailer 4$15,772 NZD
Retailer 12$17,842 NZD
Retailer 18$18,557 NZD
Retailer 9$19,984 NZD
Retailer 21$20,449 NZD
Retailer 5$20,697 NZD
Retailer 20$21,040 NZD
Retailer 14$21,412 NZD
Retailer 19$22,305 NZD
Retailer 3$22,436 NZD
Retailer 13$27,214 NZD
Retailer 11$32,746 NZD
Retailer 16$35,258 NZD
Retailer 2$36,442 NZD
Retailer 15$46,420 NZD
Retailer 17$50,159 NZD
Retailer 6$56,960 NZD
Retailer 8$67,992 NZD
Retailer 7$73,529 NZD
Do Amore Diamonds$79,932 NZD
Retailer 10$132,842 NZD

37 data points across 21 retailers

23 retailers$15,772 NZD to $79,932 NZD

A
Cheapest Retailer
-
$15,772 NZD
$8,889 USD
A
Retailer 2
-
$17,842 NZD
$10,056 USD
View
A
Retailer 3
-
$18,557 NZD
$10,459 USD
View
A
Retailer 4
-
$19,984 NZD
$11,263 USD
View
Final sale: no returns
A
Retailer 5
-
$20,449 NZD
$11,525 USD
View
A
Retailer 6
-
$20,697 NZD
$11,665 USD
View
Retailer 7
-
$20,699 NZD
$11,666 USD
View
Price last confirmed 15 days ago
A
Retailer 8
-
$21,040 NZD
$11,858 USD
View
A
Retailer 9
-
$21,412 NZD
$12,068 USD
View
A
Retailer 10
-
$22,305 NZD
$12,571 USD
View
A
Retailer 11
-
$22,436 NZD
$12,645 USD
View
A
Retailer 12
-
$27,214 NZD
£12,077 GBP
View
A
Retailer 13
-
$32,746 NZD
£14,532 GBP
View
B+
Retailer 14
-
$35,258 NZD
£15,647 GBP
View
B+
Retailer 15
-
$36,442 NZD
€19,561 EUR
View
B+
Retailer 16
-
$46,420 NZD
ZAR 422,660 ZAR
View
B+
Retailer 17
-
$50,159 NZD
$28,270 USD
View
B+
Retailer 18
-
$56,960 NZD
$32,103 USD
View
B+
Retailer 19
-
$63,472 NZD
$35,773 USD
View
B
Retailer 20
-
$67,992 NZD
$38,321 USD
View
B
Retailer 21
-
$73,529 NZD
$41,441 USD
View
Most Expensive
B
Do Amore Diamonds
27-86864EE0D · Oct 31
$79,932 NZD
$45,050 USD
View
21 more retailers have this diamond
Prices start from $15,772 NZDSave up to $64,160 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
5.12ct Radiant
$15,772 NZD