CaratHunter
Plans
Round|Lab Grown|IGI

1.28ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG790612054

Shape and cutting style on the report: Round brilliant

Certificate IGI LG790612054

Diamond specifications and retailer prices

From $2,924 NZD
$1,648 USD
As of October 29, 2026
Save $3,433 NZD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,316 NZD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790612054 or 790612054. Listed at 20 retailers as of October 27, 2026, with a 117% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790612054
Dimensions7.04 × 7.08 × 4.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.04 mm7.08 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790612054
Side View
Table 57.0%Crown 33.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,788 NZD|Low: $2,807 NZD|High: $11,331 NZD|Avg: $5,180 NZD|+1.1%
Retailer 1
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
October 30, 2026
Retailer 17$2,924 NZD
Retailer 14$2,945 NZD
Retailer 7$3,181 NZD
Retailer 9$3,274 NZD
Retailer 2$3,392 NZD
Retailer 4$3,392 NZD
Retailer 6$3,618 NZD
Retailer 16$3,691 NZD
Retailer 1$4,788 NZD
Retailer 3$5,330 NZD
Retailer 12$5,358 NZD
Retailer 15$5,848 NZD
Retailer 13$6,015 NZD
Retailer 10$6,235 NZD
Retailer 8$6,357 NZD
Retailer 11$9,739 NZD
Retailer 5$11,331 NZD

43 data points across 17 retailers

20 retailers$2,924 NZD to $6,357 NZD

B+
Cheapest Retailer
-
$2,924 NZD
$1,648 USD
Retailer 2
-
$2,945 NZD
$1,660 USD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$3,181 NZD
$1,793 USD
View
B+
Retailer 4
-
$3,274 NZD
$1,845 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,392 NZD
$1,912 USD
View
Retailer 6
-
$3,392 NZD
$1,912 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$3,618 NZD
$2,039 USD
View
B+
Retailer 8
-
$3,691 NZD
$2,080 USD
View
B
Retailer 9
-
$3,906 NZD
HK$17,200 HKD
View
B
Retailer 10
-
$4,788 NZD
£2,125 GBP
View
B
Retailer 11
-
$5,330 NZD
$3,004 USD
View
B
Retailer 12
-
$5,358 NZD
€2,876 EUR
View
B
Retailer 13
-
$5,848 NZD
$3,296 USD
View
B
Retailer 14
-
$6,015 NZD
$3,390 USD
View
B
Retailer 15
-
$6,235 NZD
ZAR 56,770 ZAR
View
B
Retailer 16
-
$6,357 NZD
$3,583 USD
View
Retailer 17
-
$9,739 NZD
£4,322 GBP
View
Price under review
Most Expensive
Reve Diamonds
5B170FEB1 · Oct 30
$10,316 NZD
$5,814 USD
View
Price under review
17 more retailers have this diamond
Prices start from $2,924 NZDSave up to $3,433 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.

B+
1.28ct Round
$2,924 NZD