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Round|Lab Grown|IGI

2.78ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG485136486

Shape and cutting style on the report: Round brilliant

Certificate IGI LG485136486

Diamond specifications and retailer prices

From $2,750 USD
As of October 29, 2026
Save $9,676 USD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $12,426 USD at Cape Diamonds · As of October 29, 2026
View at Cape Diamonds

About this 2.78ct lab-grown round diamond

This 2.78ct lab-grown round sits in the two to three carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG485136486 or 485136486. Listed at 12 retailers as of October 29, 2026, with prices from $2,750 to $12,426, a $9,676 spread on the same certified stone. Cape Diamonds lists it at $12,426. 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
I
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG485136486
Dimensions9.00 × 8.96 × 5.60 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.00 mm8.96 mm2.78 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG485136486
Side View
Table 53.5%Crown 35°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.4%

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: $12,426 USD|Low: $2,750 USD|High: $13,000 USD|Avg: $6,337 USD|-4.4%
Cape 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
October 29, 2026
Retailer 6$2,750 USD
Retailer 8$4,153 USD
Retailer 11$4,651 USD
Retailer 9$4,817 USD
Retailer 12$4,817 USD
Retailer 13$4,865 USD
Retailer 4$5,039 USD
Retailer 3$5,370 USD
Retailer 7$6,268 USD
Retailer 10$7,457 USD
Retailer 5$8,397 USD
Retailer 2$9,987 USD
Cape Diamonds$12,426 USD

16 data points across 13 retailers

12 retailers$2,750 USD to $12,426 USD

B+
Cheapest Retailer
-
$2,750 USD
B
Retailer 2
-
$4,153 USD
View
B
Retailer 3
-
$4,352 USD
View
B
Retailer 4
-
$4,651 USD
View
Final sale: no returns
B
Retailer 5
-
$4,817 USD
View
Retailer 6
-
$4,817 USD
View
Price last confirmed 14 days ago
B
Retailer 7
-
$4,865 USD
View
B
Retailer 8
-
$6,019 USD
View
B
Retailer 9
-
$6,268 USD
View
B
Retailer 10
-
$7,457 USD
View
B
Retailer 11
-
$9,987 USD
£7,864 GBP
View
Most Expensive
B
Cape Diamonds
cert_485136486 · Oct 29
$12,426 USD
ZAR 200,742 ZAR
View
11 more retailers have this diamond
Prices start from $2,750 USDSave up to $9,676 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.

B+
2.78ct Round
$2,750 USD