CaratHunter
Plans
Round|Lab Grown|IGI

1.28ct E SI1 Round Lab Grown Diamond

VG • E/SI1 • IGI LG763605132

Shape and cutting style on the report: Round brilliant

Certificate IGI LG763605132

Diamond specifications and retailer prices

From $170 USD
As of October 29, 2026
Save $817 USD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $987 USD at MOH London · As of October 26, 2026
View at MOH London

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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG763605132 or 763605132. Listed at 13 retailers as of October 26, 2026, with prices from $170 to $987, a $817 spread on the same certified stone. MOH London lists it at $987. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.9°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG763605132
Dimensions7.04 × 7.02 × 4.16 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
7.04 mm7.02 mm1.28 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG763605132
Side View
Table 58.0%Crown 32.9°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 59.2%

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: $987 USD|Low: $109 USD|High: $1,015 USD|Avg: $426 USD|-2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 4$109 USD
Retailer 8$170 USD
Retailer 9$190 USD
Retailer 3$211 USD
Retailer 5$360 USD
Retailer 2$372 USD
Retailer 11$377 USD
Retailer 12$409 USD
Retailer 10$463 USD
Retailer 7$546 USD
Retailer 6$600 USD
MOH London$987 USD

33 data points across 12 retailers

13 retailers$170 USD to $987 USD

A
Cheapest Retailer
-
$170 USD
A
Retailer 2
-
$190 USD
View
Final sale: no returns
A
Retailer 3
-
$211 USD
View
A
Retailer 4
-
$360 USD
€343 EUR
View
B+
Retailer 5
-
$372 USD
£293 GBP
View
B+
Retailer 6
-
$377 USD
View
B+
Retailer 7
-
$409 USD
View
B+
Retailer 8
-
$463 USD
View
Retailer 9
-
$485 USD
View
Price last confirmed 34 days ago
B
Retailer 10
-
$546 USD
View
B
Retailer 11
-
$600 USD
View
Retailer 12
-
$652 USD
View
Price last confirmed 46 days ago
Most Expensive
B
MOH London
LG763605132 · Oct 26
$987 USD
£777 GBP
View
12 more retailers have this diamond
Prices start from $170 USDSave up to $817 USD

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
1.28ct Round
$170 USD